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2 definitions by shumbles

 
1.
When kenny is on fire while macking on helpless hot ladies, every night
jesus, kenny's on a real kmacattack tonight
by shumbles November 23, 2006
 
2.
When you, or one of your friends, is slaying the ladies
"Oh my god, Kenny is on a kmac attack"
by shumbles June 07, 2007