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1.
WitWit is the shortened version of the phrase "What is That, What Is That" this is when reffering to an extremely ugly or weird looking person
An ugly girl walks by, One guy says to another "What Is that" The other guy says she was a total WitWit
by King Laca October 05, 2006
 
2.
the noise that a guinea pig makes when it waddles on the grass
when it is very hungry for lettuce
wit wit guinea pig
the guinea pig goes wit wit
by sammy z October 30, 2007