Nickname for the individual in a group who won't shut his/her yapper. He/She always has a comment ready for any situation, be it appropriate or not (usually not).
Person 1: Wow my (poker) hand is ugly.
The Mouth: Just like your face! Hahahahaaa!
Person 2,3,....: <Shakes Head>
Person 1: Shut up and bet Marc.
When one guy touches lips with another guy but does not actually kiss him.
Bro #1 "Oh my god dude you totally were kissing that guy last night!"
Bro #2 "Shut up, I wouldn't even call it kissing. I was only mouthing him."
The use of the mouth in an verbal sense
Is all that smart mouthness necessary
A lesbian punk band from Tasmania, related to the Sea Scouts. Their name is Tasmanian slang for cunnilingus.
Mouth really opened up the Tasmanian punk scene to LGBTI bands.
Used awkwardly -- and ONLY awkwardly -- after something you've said to/about the opposite sex (or same, if that's how you go about) could be mistakenly taken into a flirtatious or more-than-friendly context. Replaces "but not like that" in most cases.
Basically:
"I'm completely positive towards you at the moment, but not in a way that I want to shove my crotch into your face."
Dude 1: Yo, do you like her?
Dude 2: Yeah . . . but not in the mouth.
Dude 1: What the HELL does that MEAN?
The thing that you use a dick to shut up
Calvin put you're Dick in her mouth and shut her up