crapslap Share definition Flag The act of wipeing your (or someone else's) ass just after a shit and then slaping someone. guy 1: wow dude did you hear that new justin beiber shit?guy 2: ya i wish i could crapslap him! crapslap by sexapeal July 6, 2011 0 0 Get merch Get the crapslap mug. Buy Now — $32.95 See more merch