look up any word, like blumpkin:
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 04, 2010

Words related to Stink Mouth

bad breath one upper irritating joiner purple buffalo