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metal mouth 

1. Braces, having braces.

2. Person with braces.

3. Vocoder.
My CB handle was Metal Mouth in the early 80s, but I never wore braces. I was the chew-em-up mobile and the spit-em-out base.
metal mouth by Downstrike October 30, 2004

meatmouth 

Someone who enjoys sucking dick.
Your mom is a real meatmouth.
meatmouth by collegewhore April 26, 2004

metamouth 

A person who is not only a big mouth, but one that can't stop talking about themselves. Every conversation seems to loop back to 'them'.
Jesse: So, this has been the week from hell.
Chad: Fuuuuck... I've been there, I know what you're going through.
Jesse: Uggghh. My wife threatened to divorce me on Tuesday.
Chad: Oh, I went on a date last week... and she would not put out. Fuck that chick!
Jesse: Then my car's transmission went out.
Chad: Fuuuuck. I had a flat last month. Took AAA almost an hour to fix it.
Jesse: And my dog died.
Chad: Fuuuuuuuck. I know man. I had a goldfish die on me when I was ten.
Jessie: Your fucking goldfish?? You... you are a self-centered metamouth!! My God! Why do I come here every week?? You're the worst shrink I ever had.
metamouth by PDXJohnny99 April 22, 2013

methmouth 

a decayed mouth, missing many teeth, usually secondary to methamphetamine abuse
"Yo, that girl's grill is fucked up. She got methmouth"
methmouth by crossbaybridge March 13, 2014

meatmouth 

occurs when the oral cavity is filled with a large amount of manmeat.
There's no way she could get out a sentence, being that she had a meatmouth from the basketball team for the entire afternoon.
meatmouth by Richard the Lionheart December 30, 2007

methmouth 

When a person has very bad breath or has lost teeth from using so much crystal meth, you are considered a methmouth.
He smokes so much fucking crystal that now he is a methmouth.
methmouth by SeekretsJlove March 24, 2008
More from Urban Dictionary
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
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