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desibling 

The act of removing an actual sibling from your Facebook's sibling list. This is usually done after the sibling does something embarrassing to your profile, making you want to forget that you're related.
Man 1: "Dude, your mother just posted 'I love you' all over your wall!"
Man 2: "I know. It's so annoying. I'm going to desibling her when I get back home."
Man 1: "No, you should keep it! It's so cute!"
desibling by Joo Got Pwn3d October 17, 2009
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DesigningXen 

DesigningXen is a youtuber who makes youtube videos with gaming, unboxing and music videos and his channel has grown.
Hey go check out DesigningXen on Youtube

Descaling your fish 

Sam, I walked in on you descaling your fish!

Destieling

When a queer couple goes canon for five seconds, then one of them (or both of them) dies.
Person A : These companies are obsessed with Destieling

Person B: True
Donor sibling. Individuals biologically related by the donor who provided egg or sperm to their parents.
My moms and I are meeting my dibling and her moms.
dibling by krilvers July 27, 2016

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(This is one of the longest words to ever defined on UrbanDict as long as my longest word to ever submit.)
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Dirt Deviling 

Refers to eating uncontrollably.
"I really have to stop dirt deviling, or my cute designer jeans won't fit anymore."
Dirt Deviling by PerfectTouch December 26, 2007
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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