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Droppin' a Seibel 

To fart with either extreme stench (room-clearing) or a fart of epic proportions
Dude i ate too much at Taco Bell earlier - I feel like Droppin' a Seibel...
Related Words

sebbernakle 

The longhand version of Seb or Sebastian. A sebbernakle is specifically with someone with goblin tendencies and can't be trusted.
Person 1: "Hey man did you see where my Newports went?"
Person 2: "Yeah, I left them with the sebbernakle:
Person 1: "Oh"
sebbernakle by WarmFission February 2, 2022

sebelius 

to negligently ignore critical items in an oblivious manner with devastating consequences to large groups of people with the ulterior motive to fecklessly blame one's opponents for the subsequent widespread panic, chaos and wreckage.

Distantly related to the terms SNAFU, FUBAR and BOHICA due to their governmental origins although more to do with the civilian federal bureaucracy than the military.
Citizen 1: I have tried 30 times to get onto helathcare.org so I can get insurance for my family.

Citizen 2: I thought obama fixed that

Citizen 1: no but he sure sebeliused the crap out of the tea party on this one.
sebelius by Matoh Wakan October 28, 2013
The definition of badassness. One who acomplishes great feats of awesomeness. A complete and utter pimp who gets whatever he wants.
John- dude did you see that guy kill that tiger with his bare hands and then bang that hot chick
Bob- yeah that dude's such a seibel
Seibel by Badass69 January 16, 2009

Seibeling 

The act of fantasizing/masurbating about a sexy Professor and becoming either wet or hard during their class and subsequently going home and masturbating about them.
As I listen to my Professor's voice in class, I am seibeling of him with his hand in my pants.
Seibeling by Hot for my teacher February 17, 2008
Seebell is a kind, beautiful, thoughtful, funny, and sensitive girl. She is amazing, everyone would love to be her friend. Whoever she is best friends with, is denfinatlly a lucky person. Seebell would always be there for you no matter what happens.
seebell’s bestfriend- seebell is so kind, I wish nothing takes us apart, she is MINEEE.
Seebell by FindingNemo March 19, 2018
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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