bwahh Share definition Flag Word to be used when a hot girl passes or when speaking of something sex or hotness related girl-i think my boobs grew guy-bwahh or guy-did you see the ass on that chick..Bwahh! bwahh by Travis Harvey January 17, 2008 0 0 Get merch Get the bwahh mug. Buy Now — $32.95 See more merch