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1.
another way to write "what's up?"
wus' up? How are you doing?
by ALDOmx April 05, 2004
 
2.
referring to the word wazzap, or wazzup? or wassup? wazzup? wuzzup? what is up?
Person 1: Hey wusup?
Person 2: Your mom.
by Fuck u losers February 24, 2005