Bosom Basher Share definition Flag The act of a male slapping breast so hard that they fly up and hit the female in the face. LOL YOU JUST GOT DOUBLE SLAPPED, BAI MY POKEMON! Maybe i should be called Bosom Basher Bosom Basher by Ringtailedslasher June 5, 2011 0 0 Get merch Get the Bosom Basher mug. Buy Now — $32.95 See more merch