bum mint Share definition Flag A mint which freshens your rear end. "Bum mint" is used as a cuss. An abusive term. It can also be used in a friendly way. "You stupid bum mint". "Aww, it's alright you bum mint." bum mint by Waheey June 19, 2006 0 0 Get merch Get the bum mint mug. Buy Now — $32.95 See more merch