To twist the throttle on a 2-stroke machine (dirtbike, snowmobile, etc) suddenly, so that the engine exhaust note resembles the phonetic sounds "braaaaaaapp." The vibrato in the "a" sounds mimicks the mild oscillation in engine rpm from movement resistance.
The dude doved into the corner on the brakes, cranked it around, and brapped it out of the rut. He sprayed all the fans behind the fence with several pounds of roost.
by Zane J October 26, 2006