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flacidity 

The reaction of the male genetalia occuring when open hand contact exceeds a duration of longer than a high-five between two guys while performing the Eiffel tower or any other 3 person maneuver.
My flacidity occured when Brad tried to hold my hand while we were fucking Esther.
flacidity by esbradjosh April 9, 2010

plaiditude 

the act of wearing plaid or being plaid
also the act of loving plaid
that guys plaiditude needs to change
plaiditude by andrew robertson February 9, 2008

placisity 

To be in the state of peace. To feel calm, or serene.
The man outside the pub insisted he invented the word placisity in 2001, but it's still not in the dictionary. This made him angry. He was not in a state of placisity.

(True story). Now that it's in a dictionary hopefully he is on his way to placisity.
placisity by James Lee Dixon January 14, 2008

placidly 

The sea now shimmered placidly before our eyes.

INSTANT FLACIDITY 

When your dong is suddenly gone because you were trying to have sex with your sister then your girlfriend walked in. (That word is only a valid word in cases exactly like this)
I was tryna fuck my sister, but bae walked in and my dick got scared so it let out a loud shout saying "INSTANT FLACIDITY!!!" Which of course activated the power to retract immediately so as to flee a dangerous situation
INSTANT FLACIDITY by YouDontKnoMe_ September 10, 2019

Playinity 

The status of if you're a player of not kind of like a virginity but it's more of a status thing.
Boy 1: I'm in love with Delilah bro!
Boy 2: FAREAL? You used to be a player man!
Boy 1: DOES THIS MEAN I'VE LOST MY PLAYINITY?
Boy 2: YUP!!
Boy 1: Fuck it It's worth it!
Playinity by Thawild.kidd October 9, 2017
More from Urban Dictionary
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
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
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