Scun is the 60's LA Hell's Angels term for
brown sticky highly potent bath tub methamphetamine. It is the only form of meth that is strictly injectable, because of its consistancy (A.K.A peanut
butter dope). The term is associated with the slam a gram ninja clan (notorious for shooting up whole grams in
one dose). Scun is also a sludge metal(bongzilla/eyehategod-esque) band from Arkansas.