Top Definition
the sexual act of one shoving a frozen egg up one's butt hole, then, pooping thus egg out onto their partner's chest, laying it like a duck usually would.
Dude. last night Grace and i did the urban duck!
by tman1017 March 28, 2011
The sexual act of freezing and egg and shoving it up ones butt hole. Then pooping said egg out onto your sexual partner's chest.
Dude, she gave me an urban duck last night!
by tman1017 April 06, 2011

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