Bum Cum Dribble Share definition Flag when a person has anal sex and when he ejaculates it dribbles down to her vagina Dufwace:Arghh dude you were conceived by bum cum dribble Bum Cum Dribble by MARK BANNER March 31, 2009 0 0 Get merch Get the Bum Cum Dribble mug. Buy Now — $32.95 See more merch