bitch vomit Share definition Flag When a woman on her period or just plain pissed off lets her inner bitch off all over you Dude 1: Why are you so pissed, dude?Dude 2: I just got hit by a bunch of bitch vomit. bitch vomit by Triple A&M February 27, 2011 0 0 Get merch Get the bitch vomit mug. Buy Now — $32.95 See more merch