1 definition by blackbayou

Top Definition
The pinnacle of all that is awesome.

Not to be mistaken for the German verb "kacken," which means "to defecate."
Megan: "Man, Jack Black is amazingly kack!"

Sam: "Dude, I gotta take a massive kack."
Sally: "No, dumbass, that's not how you use the word!"

by blackbayou August 23, 2007

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