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Niblingo 

A woman pregnant with your future niece or nephew that is not related to you by law.
This word was used in “Young Sheldon”
That woman over there is my niblingo.
Niblingo by SafSafSafa June 6, 2023

niblings 

A collective term for one's nieces and nephews
Your niblings will be arriving shortly.
niblings by Mike Livingstone September 1, 2003
Word of the Day on June 4, 2023
My mom came home when I was nailing Susan in the ass!
Nailing by tinasss February 16, 2017
An immature person, a concatenation of the word "Na" in Urdu used to negate something, and "Baaligh" in Arabic which means mature.

Pronounced Nub - lig
James: Fart, hehehe.
Rayan: Nablig.
Nablig by snakeviper123 May 28, 2020

Niblings 

Collective term for nieces and nephews as siblings is collective for brothers and sisters.
My niblings will have to wait until Christmas for their presents.
Niblings by Haaven December 22, 2008
A gender-neutral word for a niece or nephew, a-la "sibling."
I have 9 nephews and 4 nieces for a total of 13 niblings.
nibling by Rob Blanding August 22, 2006
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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