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National Mon's day 

National Mon's Day is celebrated on the first May bank holiday Monday every year. Mon's originating from Delamere area (Cheshire) get together, drink beer and have a bloody good time, preferably at Oulton Park watching the British Super Bikes.
Ay up mon, It's national Mon's Day!

Satan's Moneyshot 

A term for being sprayed in the face with a very hot and/or painful liquid.
Friend 1: Dude, I asked this girl for her number. Instead she gave me Satan's Moneyshot!

Friend 2: Holy crap man! She must have thought you were a rapist.

McCain's Monster 

A nickname for Sarah Palin who was virtually unknown until John McCain picked her as his running mate in the 2008, now she is considered a rising star in the Republican party
Before John McCain picked Sarah Palin as his running mate she was just an obscure governor most people had never heard of, now McCain's Monster has risen in prominence to become the de facto leader of the radical Tea Party movement.
McCain's Monster by Mr.Juan-derful November 18, 2010

Adrian's Monster 

The large object that hides inside Adrian's pants. Commonly referred to as the "Big John Special," Adrian's monster only comes out of hiding when hearing the mystical Mark Colby play jazz. Adrian's monster will begin to escape when smooth jazz is played and will later hide until the real Mark Colby reveals himself again.
Where is Adrian's monster

It's hiding in his pants

Shut the hell up before I shove a cactus so far up your ass you'll have more pricks in your mouth than your father had on Pride's Month 

something that many, many people would like to tell people
"Shut the hell up before I shove a cactus so far up your ass you'll have more pricks in your mouth than your father had on Pride's Month," said little Jimmy "Damn, little Jimmy, you need to chill out," said his bully, getting out the gasoline and matches."

Daddy’s Money

Daddy’s money. A person that everything is handed to them in life. The are fed with a silver spoon. The most known daddy’s money is Aaron Blakeway.
Aaron why are you such a daddy’s money.
Daddy’s Money by Pussyslayerxxx67 December 20, 2019
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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
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