The word you say mid way through kissing if her hair gets in your mouth.
The ability to play every percussion instrument including different sorts of drums and cymbals using different parts of your mouth and nasal passage.
All hail mutha fuckin deezy; lord of the mouth drums!
To punch another individual with your mouth, on their mouth. Can also be called "kissing".
"God, Matt is so fucking hot I just want to mouth punch him."
Someone who sucks at their job
My coworker is such a mouth breaker, everything they do is wrong.
A person who dosent understand; stupid; dumb; etc
"That person is a mouth breather."
"Ugh, you're such a mouth breather."
A person who's so unbelievably dumb, they couldn't even be bothered to breathe through their nose. To put it simply, mouth breather is another word for an idiot.
"That guy, *name here* is nothing but an inconsiderate, close-minded mouth breather!"