The act of smacking or otherwise hitting someone(specifically in the face) with a hairbrush.
Trevor was a little to confident as he stepped out of the bathroom following his mid-morning dump, so I knocked him down a peg with a swift weasel punch to the ear lobe.
by Editorial Salmon January 8, 2012
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Where you walk up to somebody and punch them in the back of the head,knocking them out, then shit all over their face.
When Jon wasn't looking i walked up in back of him and weasel punched him.
by Miles, Sven, Paul, Scott July 10, 2006
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