Top Definition
Also known as the logo for Raisin Bran©, the Poopy Monster eats anything and all things good. He has an appetite for small children's souls and a thing for sprinkle monster.
Corrine: "Oh shit, Poopy Monster just ate Sprinkle Monster."
Poopy Monster: "WTF is this shit, I'm trippin' off acid."
by she made me do it April 28, 2011

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