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Death Mouth is the day after you've been drinking a lot and your breath smells like something that may come from a crypt.
"Man, have you seen John today? He's got some serious death mouth."
by candeezy January 04, 2010
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Whats comes from someones mouth the morning after or any period after large amounts of alcoholic beverages or anything nasty are consumed
I don't want to be rude man, but you have death mouth.

Damn girl, get a tic-tac you have got some terrible death mouth.
by Mrkuushington December 26, 2010
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