Quote Originally Posted by cleareyes
it is an industrial vehicle that heats, packs and flattens asphalt
Haha..that was worth a chuckle.

A steamroller is generally a straight pipe, open at both ends, with a bowl in the middle/top. You put your hand over the end, light the bowl, fill the chamber with smoke, take your hand off, inhale, the end. In this case though, one end of the pipe is attached to a gas mask. :stoned: