Dumb broad Share definition Flag A delusional girl who thinks she knows everything but, generally speaking, knows little to nothing. "Samantha thought she knew everything about the argument, but was really just a dick-hopping dumb broad" Dumb broad by Lmsmm88 April 2, 2017 0 0 Get merch Get the Dumb broad mug. Buy Now — $32.95 See more merch