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1. koolaid man
Someone who participates in wall breaking action by jumping through them and then saying "Oh Yeah".
Bobbert: Dude! Why is there a giant hole in your wall?

Bobberto: The Koolaid Man came again.
2. Koolaid Man
When you bust a nut into a chick and then scream, "OH YEAH!" into her face.
I Koolaid Man-ned this girl like, "8===> ({|}) OH YEAH!!"
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