dirtbag bitches Share definition Flag noun. adj,durtbag bich, A word used to describe people who are low down, dirty and decietful My cheating and his cheating girlfriend are both pussies those dirtbag bitches deserve each other dirtbag bitches by Sweetie Bird September 24, 2013 0 0 Get merch Get the dirtbag bitches mug. Buy Now — $32.95 See more merch