Petrobitch Share definition Flag An annoying bitch who looks like they have fried their brain sniffing petrol. Dude 1: wow, that chick over there looks like a massive petrobitch. Dude 2: you are so right. Petrobitch by jayjaydouglas July 1, 2011 0 0 Get merch Get the Petrobitch mug. Buy Now — $32.95 See more merch