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bryan halling 

The act of orally pleasuring ones butthole. Not to be confused with a typical rimjob; the "Bryan Hall" utilizes a full tongue stroking technique along with full eye contact with the intended region. Commonly leads to Pinkeye for the providing participant.
Damn Adam I've been"Bryan Halling" that chick all night!
bryan halling by BuhDeavy December 11, 2013
To sing the Halo theme song in the restroom while standing still doing the T-pose
Principle: what were you doing in the restroom
Student: We were just Haloing
Principle: NO HALOING ALLOWED!!!
Haloing by Halobeast123 July 4, 2018

Halling it up 

To wear a button-up shirt with the top two-three buttons open, and having no t-shirt under to cover the chest.
Those Europeans were so Halling it up.
Halling it up by Mr_Hall October 4, 2010

mallowing 

the act of wallowing in self pity through the consumption of marshmallows.
Sarah came home to an empty apartment and found herself mallowing in bed alone.
mallowing by demarze June 1, 2016

Halloweiner

A male that you hook-up with on Halloween.
Sarah- " I totally hooked up with Tim last night!"

Rachel- " OMG He was your Halloweiner!"
Halloweiner by Esyleal November 14, 2011
Williams: Man, takin' that hill was harrowing!
Thompson: Shut it soldier we got VC all around us.
Harrowing by LookAtJohnWillJa August 17, 2010
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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