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When someone commits an act of embarrassment or "my badness"; the person who witnesses the act can say "muff no notin" and tap him/her upside the head to make him/her be aware of his/her action.
Joe #1 - "Ah joe, I got the crabs from a hoodrat..."
Joe #2 - "Muff no notin, *taps Joe #1 upside the head*"
Joe #1 - "Oh, self serve, self serve
by Joe Charger May 07, 2008
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