Industry Terms

Industry Terms & Commonly Used Slang

Scratching your head over what “kief” is? 

Since many of our learners are newbies in the cannabis industry, you might see confusing words or phrases in the community. Browse our glossary to find a variety of cannabis term definitions and become more educated on industry terminology. 

This glossary will clear up the confusion and get you speaking like a native GC'er in no time! Also, please add new glossary terms if you see anything missing.

Browse the glossary using this index

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Couch Lock

An instant high-effect that leads to a sedative kind of experience once you have consumed cannabis, higher terpene levels in the strain is responsible for the couch lock sensation.


Usually used in reference to Indica-heavy strains that make you groggy or sleepy - if you smoke some couchy cannabis while you’re on a couch, you’re probably not getting up anytime soon.


Cannabis high in Cannabidiol (or CBD) having psychoactive qualities that sneak up on the smoker - highs usually last longer.

Critical Day Length

Maximum day length which will bring about flowering in cannabis plants.


The act of breeding different species or strains of cannabis to produce unique, better cannabis varieties. Most of the strains available in the market today are crossbreeds of different strains. The goal is to obtain desirable traits of both parents within one’s gene pool so hybrids not only have to be a Sativa/Indica-cross but can be two different strains of the same type.


Fertilizing a cannabis plant with pollen from an unrelated individual plant of the same species.


Usually made from a small piece of thick paper (such as the inner lining of a cigarette carton or the outer flap of a pack of rolling papers), a crutch is a short cylinder rolled into a joint or spliff at the side that touches your lips. The crutch serves a dual purpose - first, it prevents the end of the joint from getting wet and collapsing in on itself, making smoking it rather unpleasant. Second, it makes rolling the joint easier - the shape of the crutch determines, at least to a certain extent, the shape of the joint.


Crystals or trichomes are the part of the cannabis plant that holds the most cannabinoids and is specifically used to make concentrates like kief or hash. Typically when looking at buds, the more crystals you see, the more potent the product.

Cubic Feet-per-Minute (CFM)

Measures air velocity - ventilation or extraction fans are measured in the Cubic Feet-per-Minute (CFM) of air they can move.

Cubic Foot (or Meter)

Volume measurement in feet (or meter): width x length x height = cubic feet (or meter).

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