1. To be harshly, intensely high off of marijuana and the like. Typically used by people that are past the point of several hits, as your average sober Joe will use more sophisticated terms such as 'blazed' or 'lit'.
Dude. Me and the guys split a dub last night, and we got four fat joints, two huge grape blunts, and two fat bowls going around the group at the same time. We got so buttered man!