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yuckmouth 

1970s era commercial jingle about the need to brush your teeth to avoid tooth decay
They call me Yuckmouth
Cause I don't brush
No I like my teeth like this

They call me Yuckmouth
Cause I don't brush
How's about a little kiss?

Got some beef in my teeth
Got some chicken too
Ouch! That's a cavity
Hey, that's new!

Well if you don't brush your teeth
Then yes, you too
Will be a yuckmouth

Don't be a yuckmouth!
yuckmouth by gammarock April 15, 2005

Muckmouth 

Someone who swears a lot.
Can also refer to semen in the mouth of a girl (or boy).
Also a skateboard magazine based in New Zealand.
Alex was wanking in the bath and the jizz landed in his mouth. Bloody muckmouth.
Muckmouth by nobjockey101 October 28, 2008
–noun, plural -mouths
a person who uses words like bullets, someone who shoots their mouth off, esp. tactless or provocatively.
Ann Coulter? Yeah, she's a gunmouthed psycho cunt.
Gunmouth by Youredoingitwrong March 1, 2009

fuckmouth 

Noun. A person with whom you are displeased.
Watch where you're driving you fuckin' fuckmouth!
fuckmouth by Johnny Hollywood September 22, 2005

yuckmouth 

Quayshawn- hey that guys breath is off the meter.

Dominique- yea he has a yuckmouth.

yuckmouth 

verb. vulgar, disgusting, displeasing.

Relates to the face you make while witnessing something sickening or repulsive.
Did you see what that moon cricket left in that spackle bucket? That shit is mad yuckmouth.
yuckmouth by D-Realz June 7, 2009
More from Urban Dictionary
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
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026

Respectfully 

Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.

After school, The Modells on Jamaica Ave was active. Respectfully.
Respectfully by john quan the first December 20, 2020
Word of the Day on September 26, 2026
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