Ground Cake
Poop found on the ground. The poop has to be human feces or feces that's large enough in quantity to fit in a pie or cake pan. Similarly shaped feces (usually from cattle) also suffices.
Bob: "Damn, I'm hungry..."
Jim: "Eat that Ground Cake!"
Bob: "'That Ground Cake'? Where?"
Jim: "Why, you're stepping on it!"
Bob: "GROSS!"
Jim: "Eat that Ground Cake!"
Bob: "'That Ground Cake'? Where?"
Jim: "Why, you're stepping on it!"
Bob: "GROSS!"