Motorboat farts Share definition Flag Motorboat farts are long lasting, drawn-out flatulence sounding like a distant boat engine. Speaking of motorboat farts, Juan sounded like he had an outboard up his ass after the burrito. Motorboat farts by I, Wreckerrr October 9, 2016 0 0 Get merch Get the Motorboat farts mug. Buy Now — $32.95 See more merch