A person who talks so much shit so often that it can be said that their mouth smells like shit. Hence the term, Stink Mouth.
That guy is such a one upper, always trying to have something bigger and better to say about everything, he's such a stink mouth.
by wiljyvry February 4, 2010
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A term used to describe a small cat or dog
Aw, look at the little doogie! what a stink mouth reeker!
by Battyguy May 2, 2015
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