Top definition
The act of punching in the face, knocking someone out, or hurting someone in another manner
Coach Paffenroth during film session: What are you laughing at Egan?
Egan: Mondo's Tattoo of the Incredible Hulk
Coach Paffenroth: You think thats funny... (break clip board over knee) I'll jack-u-up!
by madaket06 January 06, 2010
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