Ass Bag Share definition Flag The Frat Boy that doesn't realize he's now 42, single, over weight and Spring Break ended a long time ago. Person 1: How about those Jets? Ass Bag: How about your mom? Ass Bag by IndiGirl September 19, 2009 0 0 Get merch Get the Ass Bag mug. Buy Now — $32.95 See more merch