Wannabitch Share definition Flag people who think they are cool but look like little wannabe bitches.. its a slang way of discrimanting another person. (see a guy walking up town thinking hes the shit) -Look at this little wannabitch ! Wannabitch by Jah Blackie April 6, 2011 0 0 Get merch Get the Wannabitch mug. Buy Now — $32.95 See more merch