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Ai mouth

Ai Mouth is when someone’s mouth does not seem to line up with the words coming out of it. It can happen on screen or irl when it just looks like someone’s mouth is out of synch or not making the right shapes.
Doug: Oh man is this Netflix show overdubbed again?
Terry: idk I can’t tell but she looks like she has Ai mouth
Doug: yeah it’s like watching an old Godzilla film
by BettyYellowSplash July 18, 2025
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n-mouth

A downturned smile, usually indicating sadness. N-mouth = the opposite of a smile.
I saw my friend wear an n-mouth and I knew immediately that they sadly broke up :(
by Handsome Kai GG August 30, 2025
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Shut the fucking mouth up

A very blunt, often humorous way of telling someone to stop talking, usually when they’re being annoying, repetitive, or saying something obvious. Similar in meaning to “shut the fuck up,” but slightly emphasizes the “mouth” for extra effect.
person 1:blah blah blah

person 2:shut the fucking mouth up
by randompersonidk2011 September 3, 2025
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John Big Mouth

(Also known as "BM")
The friend you thought could keep a dreadful secret but as soon as he has an audience of at least 4 (including you) he spoils the secret and rolls it off like "It's a little joke, man, what's the big deal" when everyone is pointing and laughing at you and you genuinely want to JOACAD.
Dave: *Invites 15 friends over for a party*
John: Dave, I got something to tell you. I have a "the hub" channel.
Dave: dw your secret is safe :)
*3 hours later*
Dave: Guys, since we are watching tv, lets watch the best "hub" videos, made by our friend John!!!
John: SHUT THE FUCK UP JOHN BIG MOUTH
by applesaue September 20, 2025
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Mouth cannon

A woman who has a mouth capable of quickly initiating a huge powerful creamy blast of ejaculation.

Or a defination for a pressure washer attachment that generates large thick amount of foam.
" Hi kelly how did you get on with your DVD date last night?" ...oh not to bad but i knew when i pulled it out of his jeans that he wasnt gonna last long, im a real mouth cannon when i need to be"
by #big H September 22, 2025
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