cock
from the pikey dialect
a nice big kack
by kenneth February 20, 2004

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Verb: to break or fail.
"The photocopier sounds like it's about to kack."
"My computer kacked-out last weekend."
by Jaw-Knee Bear-Toe October 24, 2007

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Combination of Fucking and Crap.
Another word for excrement.
Kackhead!

I nealy kacked myself back there.
by Jay September 22, 2003

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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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Female genitalia. Often used in women's college dormatories and in rap songs (hopefully).
Oh god man, you need to smack that kack!
by Erica Camp November 30, 2005

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fuck, bone, do, ram the shit out of
OMG i kacked this fuckin hot chick this weekend.
by HulaBabe January 18, 2004

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Cock
Kack is shlong and long
by Pagina Man December 10, 2002

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