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A mis-spoken version of "word up!" It is used to confirm or affirm something said in another sentence. Like approving of something another has said. Originated in Greenwich, CT by none other than Mr. Edward Larkin. It is now commonly used by Greenwich kids and laxers alike.
bro, im gonna go get some pork shu mai
WHADDUP!
by fishpig1 May 22, 2011
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