When you are getting head while taking a shit and right before u pinch it off, u spin around(360) and hit the bj giver right in the side of the head. BLOOP!!
Dude, she was giving me a bumkin and i totally bumkin 360ed up side her head. Needless to say, we are no longer seeing one another.
by Paul the flamingo July 23, 2008
Get the bumkin 360mug.