Boofastank Share definition Flag Condition of a unclean and smelly vagina when a girl wipes back to front habitually instead of front to back. Man, we was about to get busy in the back of the car but she had hella nasty boofastank going on. Boofastank by Street Prophet April 16, 2011 0 0 Get merch Get the Boofastank mug. Buy Now — $32.95 See more merch