Poker term used for someone who plays brilliantly the whole game and then loses all his/her chips after a small series of stupid plays. Coined after the famous poker-player, Mike "the Mouth" Matusow.
I can't believe I just called you and doubled you up. I've been playing great all game and all-of-a-sudden I'm having a fucking Matusow Melt-down.
by coltrane1 January 16, 2008
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