a bum's jockstrap Share definition Flag This is a foul human groin, butt smell. Gaaawd, it smells like a bum's jockstrap in here in the bedroom!!! a bum's jockstrap by I, Wreckerrr January 30, 2021 0 0 Get merch Get the a bum's jockstrap mug. Buy Now — $32.95 See more merch