verb. The act of inhaling the still burning butt of a cannabis cigarette (aka: the "joint roach"). Origin is unknown, however it seems to appear in various groups of cannabis users (aka: "stoners"). Most often or not, it is a trick that is seldom used, and only then when it would produce amusement amongst the gathered collection of people or the person in question is entirely too intoxicated to fully be aware of what they are doing.