mud bombing Posted in M Best definition mud bombing the act of going to a bathroom stall, then climbing to the top with your ass parallel to the ground. then proceeding to shit into the toilet six feet below making a “mud-bomb.” hey jack, did you just go mud bombing?!? How satisfied are you with the definition? Looking for mud bombing meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 8 times.