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1.
when something is very bizarre, strange, out-of-normality, or just not right at all.
man, my girl is acting wiggity whack today for no reason at all.
by indydave July 08, 2005
 
2.
Similar to wiggity wack, except cooler. Because it has a "-". And everyone knows girls love guys who punctuate their slang properly.
"Jamal is wiggity-wack" is much more kickass than just "Jamal is wiggity whack"
by chyclonda January 03, 2005
 
3.
when something is out of control.
"Holy hell, that gangsta be wiggity whack."
by Teffalicious March 23, 2005