When you stick your butt in someones face(usually while they are laying down)and jiggle it. The butt-bagged process isn't complete until you fart in the persons face. It is also recommended that you take the person by surprise to not risk any unwanted injuries.
I just butt-bagged lerroy for 5 minutes but regretted it because he chopped by dick off.
by discus4life March 27, 2011