baloney flap Share definition Flag a mildly derogatory, but oddly humorous name for female genetalia, specifially the inner labia.(see: beef curtain) Wow, that chick's baloney flap is hanging out of her thong!! What's up, baloney flap? baloney flap by skittlesyum July 25, 2003 0 0 Get merch Get the baloney flap mug. Buy Now — $32.95 See more merch