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Watering can 

The action of urinating after sex when you are still bunged up with semen and your wee goes all over the seat and floor.
Girl: Why is the bathroom floor all wet?

Boy: The watering can is bust
Watering can by the rellie May 10, 2007

watering a dead plant

When you try talking to a friend who seemingly ignores you for days at a time and gives no attention back, and overall acts like they don't want to be your friend anymore. Just like giving water to a dead plant, the plant will never grow again or give anything back. Hence the name, watering a dead plant.
girl 1: damn, I was talking to Emily last night and it feels like I'm watering a dead plant

girl 2: ditch him, you shouldn't be friends with someone who doesn't match your energy

Watering the lawn 

When you pull out and finish on her substantial bush
I got to the point where I had no other option but watering the lawn

withering away 

conor: woah where did josh go
kallum: he withered away

withering away
withering away by muph August 4, 2021
Something you do when you talk rubbish with no particular reason, meaning or audience.
Oh stop wittering on man no one is listening to you again.

You wittering idiot.
Please stop wittering you're hurting my ears.
What are you wittering on about now?
Wittering by Never witter July 26, 2010

Witheying 

Achieved by grinding on one or more girls while your hands are behind your head
I saw the @fakejeffwithey Witheying down at The Wheel last night.
Witheying by jandroidhawk February 19, 2012
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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