TBAH Share definition Flag Trashy Bitch Ass Hoe; commonly known as myspace whore. It is someone who wears a ton or make-up and thinks there all that. Girl #1: Hey look at that girl over there Girl #2: (laughs) what a TBAH TBAH by djnfksdnna October 8, 2009 0 0 Get merch Get the TBAH mug. Buy Now — $32.95 See more merch