First Class Funk Strain: GMO Garlic Meets Jet Fuel
The First Class Funk strain is Compound Genetics' cross of GMO Cookies — the famous "Garlic Cookies" — and Jet Fuel Gelato, the breeder's own dessert-and-diesel hybrid. The name tells you what to expect: funk. It smells like garlic, black pepper and jet fuel with a creamy, sweet edge underneath, it tests in the mid-to-high 20s for THC on most sources, and it delivers a fast, euphoric, often giggly lift that sinks into a heavy, relaxed body. It belongs to the savory, gassy, evening side of our THCA flower collection.
It also has real credentials. Leafly named it the runner-up for its 2022 Strain of the Year and made it the September 2023 Leafly HighLight, when it was on more than 1,700 dispensary menus. Below: what each parent brings, where the databases disagree, how the high unfolds, what the potency numbers really mean, how to use it, how to grow it and how to judge a bag.
A 360° look at First Class Funk's frosty buds.
Quick Facts
In short: Compound Genetics' cross of GMO Cookies and Jet Fuel Gelato — savory garlic, pepper and diesel on the nose with a creamy, sweet edge, a fast euphoric and giggly lift, then a heavy, relaxed body. Potent, resinous, and best for experienced smokers in the evening.
- Type: Indica-dominant hybrid — Leafly, AllBud and the breeder-cut clone listing all say about 60% indica / 40% sativa. See indica vs sativa
- Lineage: GMO Cookies × Jet Fuel Gelato
- Breeder: Compound Genetics (bred in the Chris Lynch era)
- THC: Canadian producer label 20–26%; Leafly 26%; SeedFinder up to 27–35%; AllBud user reports 29–33%
- Dominant terpene: Limonene per Leafly, with caryophyllene and pinene
- Flavor: Garlic · pepper · diesel · chem · creamy grape · earth
- Best for: Evening, unwinding, appetite, experienced smokers
- Aliases: FCF
- Recognition: Runner-up, Leafly Strain of the Year 2022; Leafly HighLight, September 2023
- At Diesel Hemp: Closest match in stock — Mule Fuel, a GMO Cookies cross →
Closest Match In Stock
We don't carry First Class Funk in the shop right now. For the same GMO family gas — garlic-and-fuel funk with a heavy, relaxing indica-leaning finish:
THCA Flower – Mule Fuel
½oz — $65.00
GMO Cookies × Lurch · gassy, earthy indica-leaning hybrid · Third-party lab tested — view COAs · Add a $9 King Size Pre Roll and ship free ($75+)
Shop Mule Fuel →Shop Diesel Hemp
We don't carry First Class Funk. Mule Fuel shares its GMO parent; the rest are in-stock picks for a heavy, flavorful evening.

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SHOP NOW →First Class Funk Strain Genetics & Lineage
- Type: Indica-dominant hybrid. Leafly calls it indica-dominant, and AllBud, the Premium Cultivars seed listing and The Clone Foundry's breeder-cut listing all put it at roughly 60% indica / 40% sativa. SeedFinder contradicts itself ("mostly indica" in one place, "slightly indica-dominant" in another), and at least one Leafly reviewer bought a batch labeled sativa.
- Parents: GMO Cookies × Jet Fuel Gelato, per Leafly, SeedFinder, The Clone Foundry, Premium Cultivars and Canada's Holy Mountain. AllBud is the odd one out — it lists "GMO × Jet Fuel" and drops the Gelato.
- Breeder: Compound Genetics. Leafly's editors place it in the Chris Lynch era at Compound; Lynch, who founded the company, now breeds as Cipher Genetics.
- THC: Holy Mountain's Canadian label lists 20–26%; Leafly 26%; SeedFinder "up to 27–35%"; AllBud's user reports average 29–33%. Individual Leafly reviewers cite batches at 26.5%, 27% and 30.52%.
- Minor cannabinoids: Leafly lists about 1% CBG. CBD is negligible.
- Aliases: FCF. You'll also see menu spellings like "First Klass Funk" on hash products.
What each parent brings
GMO Cookies is Chemdawg × Girl Scout Cookies — Leafly's HighLight describes it as GSC × Chemdog and one of the top 50 strains in the country. It's where First Class Funk gets the garlic, the onion-and-cheese savoriness, the chem bite and much of its weight. SeedFinder describes FCF's aroma as "savoury and funky" with garlic and cheese, and The Clone Foundry credits the "garlic and onion funk" directly to the GMO side.
Jet Fuel Gelato is Compound Genetics' own cross. The breeder has given its recipe as Gelato 45 × (High Octane × Jet Fuel), though SeedFinder lists it more simply as Jet Fuel × Gelato. It brings the diesel, the "creamy gas" and the faint grape-and-cream sweetness — Leafly's tasting notes for FCF include "creamy grape from its Gelato parent."
Is First Class Funk related to Mule Fuel?
Yes — they're half-siblings. Mule Fuel is GMO Cookies crossed with Lurch, so both strains carry the same GMO garlic-and-fuel backbone. First Class Funk adds Jet Fuel Gelato's creamy diesel; Mule Fuel goes earthier and heavier. That shared parent is why Mule Fuel is our closest in-stock match. Other GMO crosses on the encyclopedia include Garlic Cocktail (GMO × Mimosa) and Black Amber (GMO Cookies × OZ Kush BX2).
Offspring
Leafly's 2023 feature said very few First Class Funk hybrids existed, but SeedFinder now lists six, including Compound's own Permafunk (FCF × The Menthol), Funkband (FCF × Headband Memoryloss, Forest City Seed), KiZito (GMO × FCF, Elite Eighth Genetics), and three Flip Side crosses: Funk Phenomenon, Funkwave and Sky Candy Gelato.
First Class Funk Terpene Profile
Leafly lists limonene as First Class Funk's dominant terpene, followed by caryophyllene and pinene; SeedFinder lists the same three. Canada's Holy Mountain puts beta-caryophyllene first, then limonene and selinadienes on its label — a reminder that ratios shift between growers. Leafly's HighLight feature describes the limonene here as "sharp and biting" rather than sweet, the caryophyllene as the fuel, and the pinene as the forest note. Small amounts of myrcene and humulene likely round out the earthy base, though no source we trust gives them as top-three.
Terpene Profile — Relative Intensity
Limonene — sharp citrus bite, the quick lift
Caryophyllene — pepper and fuel, the GMO chem
Pinene — pine, forest top note
Myrcene — earthy, relaxed body
Typical relative profile for First Class Funk — limonene-led per Leafly; some batches (e.g. Holy Mountain) test caryophyllene-first. Exact ratios vary by grower and cure.
- Limonene: Here it reads sharp and zesty rather than candy-sweet, and it's a likely driver of the euphoric, talkative onset reviewers describe.
- Caryophyllene: The black-pepper, chem-and-fuel spice — the backbone shared with GMO. It's also the only common terpene known to act directly on CB2 receptors.
- Pinene: A pine top note that keeps the first hour clearer than the heavy reputation suggests.
- Myrcene: Earthy and musky; part of the body weight that builds as the session goes on.
Terpenes don't tell the whole story here: the garlic-and-onion funk that defines GMO crosses is louder than any of these three on their own, so trust your nose over the label.
Appearance
First Class Funk grows dense, chunky buds. AllBud describes "fat, rounded" dusty-green nugs with yellow-orange hairs under a coat of milky white trichomes; SeedFinder notes tight, frosty flowers that can turn purple or gold-orange near harvest. The Clone Foundry's breeder-cut listing calls the colas large, dense and heavily resin-coated, and Leafly's editors say it's a big hash producer — so a good bag should look sticky and sparkle when you turn it in the light.
Aroma and Flavor
Open a jar and the funk hits first: garlic, onion and a cheesy, savory chem note from the GMO side, then diesel and black pepper behind it. Break a bud and the fuel gets louder. Leafly's tags are pepper, diesel and ammonia; its HighLight tasting notes list "chem bite, cookie body, jet fuel gas, and creamy grape." SeedFinder adds an earthy, coffee-like flavor with light sweetness on some phenotypes, and AllBud's users note grape and fruit under the "heavy peppery gas." One Leafly reviewer described a "super sweet scent, vanilla cream dough" — the Gelato side showing through on that cut. The smoke is usually described as smooth for something this pungent.
Recreational Effects
First Class Funk opens brighter than its weight suggests, then gets heavy. On Leafly, the most-reported effects are:
- Relaxed: the headline effect, building in the body as the session goes on.
- Euphoric: a strong mood lift — Leafly reviewers describe it as uplifting and talkative.
- Happy and giggly: Leafly's description calls it giggly, and reviewers back that up.
- Hungry: munchies come up on Leafly and AllBud alike.
- Sleepy: AllBud tags it sleepy and sedating at the end, especially at higher doses.
How the high unfolds: onset, peak and duration
- First 5–10 minutes: a brief uplifting rush — SeedFinder's description — sometimes slow to show; AllBud says it "creeps" on.
- 15–60 minutes: the peak — euphoric, chatty and giggly, with the body starting to sink.
- 1–3 hours: a heavy head-and-body relaxation. Experienced users report relaxed but functional; low-tolerance users often end up on the couch or asleep.
Because the body side builds after the head rush, give it a full 15–20 minutes before you decide you need more.

First Class Funk's dense, resinous buds break down best in a metal grinder.
→ Experience it yourself — shop Diesel Hemp's THCA Flower
How Strong Is First Class Funk?
Strong. Leafly flags its potency as higher than average and says it was bred for it. The numbers depend on the source and the grower:
- Holy Mountain (Canadian producer label): 20–26%.
- Leafly: 26% THC, about 1% CBG.
- Leafly reviewer batches: 26.5%, 27% and 30.52%.
- SeedFinder: up to 27–35%.
- AllBud (user-reported): 29–33% on average, with individual reports from 23% to 33.1%.
Realistically, a well-grown batch lands in the mid-to-high 20s, and the best cuts push past 30%. AllBud warns it can overwhelm even experienced users, and Leafly's top-reported negatives — anxious, headache, paranoid — are what you'd expect from a strain this potent taken too fast.
THCA flower is labeled differently from dispensary flower: the lab reports THCA, which converts to THC when heated, plus a small amount of delta-9 THC. When you compare a batch of First Class Funk against the 20–33% range above, compare total THC on the COA, not the headline number — our guide on how to read a THCA flower COA walks through the math.
First Class Funk vs Similar Strains
- vs GMO: the garlic parent. GMO is the more savory, sedating benchmark; First Class Funk adds Jet Fuel Gelato's creamy diesel and a slightly brighter onset.
- vs Jet Fuel Gelato: the gas-and-cream parent. JFG is sweeter and more balanced; FCF is funkier and heavier.
- vs Mule Fuel: a half-sibling — GMO Cookies × Lurch. The same garlic-and-fuel backbone, earthier and less creamy, with the same heavy, indica-leaning landing. It's our closest in-stock match, from $65.
- vs Garlic Breath and Garlic Cocktail: other savory, garlic-forward strains. Garlic Cocktail is a GMO cross that swaps the diesel for Mimosa's sour tangerine.
- vs Headband and Grease Monkey: the two strains Leafly's editors suggest as relatives — Headband through the OG and Chem lines, Grease Monkey through shared Chem and Cookies parentage.
Who First Class Funk Is (and Isn't) For
Good fit: experienced smokers who want a potent evening strain; fans of savory, gassy "funk" over candy-sweet desserts; anyone who likes a social first hour that winds down into the couch; hash and rosin fans.
Poor fit: beginners, anyone prone to THC anxiety or a racing heart, and anyone who needs to get things done after. For a sweeter, gentler nightcap, Blueberry Pancakes is on our shelf from $24.
How to Use First Class Funk THCA Flower — and How Much
THCA has to be heated to do anything. Raw, it isn't intoxicating; heat converts it to THC (decarboxylation), which is why the method matters as much as the strain.
- Smoking (joint, pipe, bong): the fastest onset. Take one or two small hits, then wait 10–15 minutes before deciding on more.
- Dry-herb vaporizer: the best way to taste the cream and pepper under the garlic. Around 350–380°F keeps the brighter limonene lift; 390–410°F brings out the heavy, gassy body.
- Pre-rolls: the no-prep option — see our THCA pre-rolls.
- Homemade edibles: decarb the flower first. Edibles take 30–120 minutes to kick in and last far longer, so start low and wait the full two hours.
How much? New or occasional users: one small puff, then wait 15–30 minutes — the body side builds after the head rush. Regular users usually find two or three hits delivers the full arc. The buds are dense and sticky, so a metal grinder works better than breaking them by hand. You can always add more; you can't take it back.
Medicinal Benefits
These are uses consumers report on Leafly, not established clinical outcomes. Individual response varies with dose, tolerance and chemotype.
- Anxiety: the most-cited reason on Leafly (about 27%) — though "anxious" is also its top-reported negative, so dose matters.
- Low mood: about 26% of Leafly reviewers, consistent with its euphoric, giggly onset.
- Pain: about 24%; AllBud's users also mention aches, cramps and muscle tension.
- Appetite and sleep: the munchies and the heavy finish make it an evening pick for many reviewers.
For a plain-language primer on how terpenes are thought to shape these effects, see Project CBD on terpenes. Nothing here is medical advice, and nothing on this page is intended to diagnose, treat, cure or prevent any disease. If you take prescription medication or have a health condition, talk to your doctor before using any cannabis product.
Side Effects and Cautions
- Dry mouth and dry eyes — the most common complaints in reviews.
- Anxiety or paranoia — Leafly's top negatives; a few reviewers mention a racing heart.
- Headache — listed on Leafly, usually from overdoing it.
- Sedation — at higher doses it can be couch-locking, so plan to stay in.
Is First Class Funk good for sleep? Many reviewers say it ends sleepy, but the first hour can be lively. Don't drive after using it, and talk to your doctor first if you take prescription medication, are pregnant or nursing, or have a heart condition.
Is First Class Funk Top Shelf? How to Judge a Good Bag
- Garlic and gas. A real FCF has the savory GMO funk and the jet-fuel diesel. Sweet-only or grassy flower is probably a different cut.
- A current third-party COA naming the lab, with THCA, delta-9 and total THC. Treat 35% claims without paperwork as marketing. Ours are on the lab results page.
- Dense, resin-heavy buds — chunky and sticky, with trichomes inside the bud, not just on top.
- Ask about the source. Compound's original seed run was limited, so most flower comes from clones; seed versions from other companies may differ.
- A proper cure — a hay or grass smell means it was rushed, and the funk won't come through.
Growing First Class Funk
First Class Funk is a productive, resin-heavy plant that growers keep for hash as much as flower. Leafly's editors say it grows "large and heavy."
- Flowering: about 9–10 weeks indoors per The Clone Foundry; SeedFinder says about 10.
- Height and structure: medium height with strong lateral branching and short internodes; moderate stretch. Topping and a SCROG net are recommended.
- Yield: no breeder figure, but the clone listing calls it high-yielding with large colas.
- Environment: indoors or outdoors per SeedFinder. Defoliate for airflow — the dense colas need it.
- Seeds and clones: SeedFinder says Compound released a limited seed run in 2020 that was never feminized and is now very hard to find; Leafly reported original packs selling for up to $1,000. Premium Cultivars sells a seed version, but how close it is to the original is unclear. Breeder-cut clones are the reliable route.
Is First Class Funk THCA Flower Legal?
Under the 2018 Farm Bill, hemp is federally legal when it contains no more than 0.3% delta-9 THC on a dry-weight basis — see the USDA hemp program. THCA flower is sold under that rule. State laws differ and are changing, so check your state before you order. And whatever the label says, THCA flower will show up on a drug test — heated, it is THC.
Why Buy From Diesel Hemp
- Third-party lab tested — published COAs for our flower on the lab results page
- Grown in Colorado by Diesel Hemp and partner farms — hand-trimmed, slow-cured, shipped fresh
- Federally compliant — under 0.3% delta-9 THC per the 2018 Farm Bill
- Ships direct in discreet packaging — free shipping on orders over $75
- Veterans discount program — proud to support those who served — apply here
Shipping & Legality
Is it legal to ship THCA flower to my state?
In its raw form our flower contains less than 0.3% delta-9 THC, making it federally compliant under the 2018 Farm Bill. Some states restrict high-THCA hemp products — check your local laws before ordering.
How does shipping work?
Orders ship direct in discreet packaging with tracking. Free shipping on orders over $75 — a ½oz plus a $9 King Size Pre Roll gets you there.
Questions about your order?
Call 833-375-3835 or email info@dieselhemp.com — real humans in Colorado.
Shop Premium Flower at Diesel Hemp
- Mule Fuel THCA Flower — our GMO Cookies cross — First Class Funk's half-sibling, with the same garlic-and-fuel funk and a heavy finish.
- THCA Flower — the full lineup, grown in Colorado by Diesel Hemp and partner farms.
- THCA Pre-Rolls — the same flower, pre-rolled.
- THCA Small Buds — same genetics, smaller nugs, better price per gram.
- What THCA flower actually is — the encyclopedia explainer.
Frequently Asked Questions
Is First Class Funk indica or sativa?
First Class Funk is an indica-dominant hybrid — Leafly, AllBud and the breeder-cut clone listing put it at roughly 60% indica / 40% sativa. It opens with a euphoric, talkative lift, then turns heavy and relaxing, so most people save it for the evening.
What is First Class Funk a cross of?
GMO Cookies × Jet Fuel Gelato. GMO is Chemdawg × Girl Scout Cookies; Jet Fuel Gelato is Compound Genetics' Gelato 45 × (High Octane × Jet Fuel). AllBud lists just GMO × Jet Fuel, but every other major source includes the Gelato.
Who bred First Class Funk?
Compound Genetics, during the Chris Lynch era. Premium Cultivars also sells seeds under the name, but SeedFinder says it's unclear how close that version is to the original.
How strong is First Class Funk?
Very. Leafly lists 26% THC, a Canadian producer label 20–26%, SeedFinder up to 27–35%, and AllBud's users report 29–33%. Start with one small puff and wait.
What does First Class Funk taste like?
Garlic and savory chem funk up front, then diesel and black pepper, with a creamy, sometimes grape-like sweetness from the Gelato side. Leafly tags it pepper, diesel and ammonia.
What does First Class Funk smell like?
Loud and savory — garlic, onion and cheese from GMO, plus jet-fuel diesel. Some cuts show a sweeter vanilla-cream note.
What are the effects of First Class Funk?
Leafly's most-reported effects are relaxed, euphoric and happy, and reviewers often describe it as giggly and talkative before it turns heavy. Munchies and sleepiness are common at higher doses.
Is First Class Funk good for sleep?
It can be. AllBud tags it sleepy and many reviewers say it ends sedating, but the first hour is often lively, so take it an hour or two before bed.
Is First Class Funk good for anxiety?
It's mixed. About 27% of Leafly reviewers say it helps with anxiety, but 'anxious' and 'paranoid' are also its top negatives. Low doses are the safer approach.
Is First Class Funk good for beginners?
Not really — it's potent and the body effect builds after the onset. If you try it, take one small puff and wait 15–30 minutes.
What does FCF stand for in cannabis?
FCF is short for First Class Funk, Compound Genetics' GMO Cookies × Jet Fuel Gelato. It's the alias Leafly lists.
How long does First Class Funk take to flower?
About 9–10 weeks indoors. It has a moderate stretch and strong side branching, so topping and a SCROG net help.
Where can I buy First Class Funk THCA flower online?
First Class Funk isn't in the Diesel Hemp shop right now. The closest match is Mule Fuel THCA Flower — a GMO Cookies × Lurch cross, so it shares First Class Funk's GMO parent, with the same garlic-and-fuel funk and heavy, indica-leaning finish. It's from $65, third-party lab tested, with free shipping over $75.
Closest GMO-family match in stock · from $65 · free shipping over $75
Related Strains
- GMO (Garlic Cookies) — the garlic-funk parent.
- Jet Fuel Gelato — the creamy-diesel parent, also from Compound Genetics.
- Mule Fuel — GMO Cookies × Lurch — a half-sibling and our closest in-stock match.
- Garlic Cocktail — GMO × Mimosa — savory funk with a citrus twist.
- Black Amber — another GMO Cookies cross.
- Garlic Breath — a savory garlic strain in the same conversation.
- Jet Fuel — the diesel behind Jet Fuel Gelato.
- Headband — a relative through the OG and Chem lines, per Leafly.
- Grease Monkey — shares Chem and Cookies parentage, per Leafly.
- Browse the Full Diesel Hemp Encyclopedia
From $65 · GMO Cookies cross