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1 definition by Kai'yonna

When something is fun(like a party), to get something started(like a fight).
ex 1:"A yo cuz, that party was shmackin!!!"
ex 2:"It's about to be on and shmackin cuz, dat bitch keep talkin shit, i'm bout to crack her off top!"
by Kai'yonna December 29, 2005
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