Bustybumting Share definition Flag NounA woman with large (or busty) breasts and a calipaigous backside. "You seen that bustybumting on road" "Not gonna lie she a bustybumting" Bustybumting by Primester9000 September 30, 2020 0 0 Get merch Get the Bustybumting mug. Buy Now — $32.95 See more merch