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Infernal Twins 

The infernal twins are Valkyrae and Sykkuno. They share one brain cell. The name came from when Rae meant to say that her and Sykkuno are “fraternal twins” but forgot the name of it and instead said “infernal”.
Rae and Sykkuno are the infernal twins! They share one brain cell and fight over it constantly.
Infernal Twins by CatsAreSwaggy January 27, 2021
Related Words

Dolan Twins 

17 year old youtubers who are outgoing , attractive , adventurous , funny and goofy . They have over 10 million followers put together on instagram alone. They have quite big booty s for boys.
C: have you seen the dolan twins new video posted this tuesday?
K: Yeh ethan looks so hot!
C: more like Grayson does!!
Dolan Twins by dolan5624 June 3, 2017

dolan twins 

a brown hair, hazel eyed, jawline goals duo who are actually a gift to the damn earth
"wow the dolan twins are hot"
"no shit"
dolan twins by keegan:) January 31, 2017

Siamese twins 

Two men who share the same month they both last had sex.
Josh: When have you last had sex
Paul: August bro
Josh: Guess what bro
Paul: What
Josh: August was the last month I had sex!
Paul: ayyeee let’s go
Josh: There should be some sort of name for this type of thing
Paul: Yea totally we should call it being siamese twins on dead dogs

hood twins 

When two women in the 'hood get knocked up around the same time by the same man and have children that are very close in age.

Same daddy, different mama's, same year in school.
Man, that fool knocked up all them bitches and had two sets of hood twins!
hood twins by LDoc October 22, 2009

Dolan twins 

They are the daddies of the whole universe. They hate being called daddy but like how can you not call them that? They have the best sharpest jaw lines. Best abs out there. They get hate but they don't care. They are the sweetest, most genuine boys out there who are sadly turning 18 soon :,(
" woahhhh have you watched the dolan twins?" Smart girl says

"No I like the dobre twins" dumb girl says

"Psh your deadass dumb ahahha" smart girl says
More from Urban Dictionary
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
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
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