Munching butthole Share definition Flag This means that you smell really bad or have stanky breath! Rowin "Hey how are you?"Bailey " OMG you munching butthole, get away you smell like s***!!" Munching butthole by Ling ling 2013 September 7, 2013 0 0 Get merch Get the Munching butthole mug. Buy Now — $32.95 See more merch