Top Definition
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
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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