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A trick one plays on others at Easter, often on younger siblings, where one replaces the candy inside of a hollowed plastic easter egg with cat feces.

A variation of the trick is performed by following the trick by attempting to convince the victim once they open the egg that the cat droppings are simply melted chocolate and that they should enjoy it.

Usually followed by singing "Kitty surprise, Kitty surprise, the easter bunny hates you, and hopes that you die."
Sibling 1: *opens egg
Sibling 2: Looks like the easter bunny hates you and left you a Kitty surprise.
by General Nipowitz March 11, 2010
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