steeplump Share definition Flag A deep big poo poo that makes a plop noise when it hits the water in the toilet. “I can smell your steeplump from the other room” Bobbie said to me after I took a massive poo poo. steeplump by IzzyS September 27, 2021 0 0 Get merch Get the steeplump mug. Buy Now — $32.95 See more merch