The cough of a stoner who is obviously fond of smoking weed. Relatively normal during pot sessions, the cough seems to be peculiar among common people (and the rest of the people who are aware of weed smoking) who hear it on a regular basis while finding it as distinct to normal coughing, hence the existence of this word.
When bitches be coughing after that bong rip; The dry sand feeling in your throat when youcan't breathe but take another hit cuz it would be okay to die from a cough so gnarly.
Danielle ripped the bong and started hacking up a lung; Her smoke buddy Aubry said " Hey pass that here I want a weed cough too."
When Glama Christine refuses to smoke the reef and you remind her of the beautiful weed cough that prevents a covid cough.
Weed that is searched for in a desperate attempt to get high, found in places that weed is frequented. These places include carpets, dressers, and couches. Couchweed may contain various kinds of ( probably old) weed, pocket lint, pizza crust, maybe toenail clippings.
person1: yo, dont forget you owe me weed
person2: damn, im all out, let me look in my couch
person1: hell no son, i dont want your couchweed
person2:shit, ill just pick up a dub