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Longbottoming 

The sometimes slow, sometimes overnight, always surprising transformation of someone, usually a man, from decidedly unattractive to hot as hell a la Matthew Lewis, the actor who played Neville Longbottom in the Harry Potter film series.
“Man, Thomas really Longbottomed that summer after high school and now he’s totally fuxable.” “Whatever bitch, he’s actually too good for you now.”

“Taryn Manning really reverse-Longbottomed to Pennsatucky in Orange is the New Black.”

“Matthew Lewis, after the original Longbottoming, is now more attractive than all of his former castmates.”
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Neville Longbottoming 

At one point being super awkward at puberty being good to you and growing up to be super smexy.
He will be Neville Longbottoming through puberty

Lobottoming 

When the dick is so good…you lose the ability to think.
I was not that into him but after lobottoming he can have my social security number
Lobottoming by Bmcshaffrey October 28, 2023
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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.
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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.
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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
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korean word for madam, older woman
Ajumma wait a moment
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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
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