Man if that hater dont quit runnin his mouth I'm bout to dumb out on him
by Tha Silencer March 3, 2008
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To get in the "zone," to be at the top of one's game
Watch Chris Henry of the Bengals dumb out as they get closer to the red zone.
by Cory Battin December 19, 2006
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The exhaustion you feel after dealing with stupid and/or rude people.

Comes from "plumb tuckered out," meaning tired as hell.
I spent 20 minutes at work today explaining to a customer that he couldn't use his gift card because there was no money left on it. He kept saying "But gift cards are LIKE money". I'm dumb fuckered out; I need a beer and a nap.
by luluup February 20, 2012
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