taint Share definition Flag A guy's taint is the area between his asshole and his scrotum with an intoxicating smell that produces an instant boner. I like to smell Matt's taint when he wakes up -- it gives me an instant boner! taint by USAF Cadet April 14, 2021 0 0 Get merch Get the taint mug. Buy Now — $32.95 See more merch