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Coitus Mysterioso 

Drunken sexual encounter where coitus may or may not have occurred.
Charlie thinks he had sex with this girl a few weeks ago, and she was begging for it, but he's never had sex with her before, or after, so for now it's classified as a case of coitus mysterioso.

Coitus Mysterioso 

Drunken sexual encounter where coitus may or may not have occurred.
John from Italy love a girl but she don't seems intresting it, may be she has a vacant look or she is not just accessible to him. So thinks he had sex with this girl a few weeks ago, and she was begging for it, but he's never had sex with her before, or after, so for now it's classified as a case of coitus mysterioso. It happened to me with a italian girl last year.
Coitus Mysterioso by Ciolabella April 18, 2008
More from Urban Dictionary

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
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