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Menstruating 

When a woman bleeds from her vagina for 4 - 7 days and is usually pretty irritable because she has to either shove a stick up there or wear a mattress between her legs until she is DONE menstruating- also she has a bunch of extra hormones so BACK OFF.
- I've noticed that Natalie has been being a real bitch lately.
-> Man, she's just menstruating.
Menstruating by MeMeMei December 15, 2008

Metrobating 

The act of masturbating while on board a Metro train or bus.
After smoking his meth the homeless man pulled out his junk and started metrobating in front of everyone without a care in the world.
Metrobating by beerdrinker247 April 6, 2023

Ass end of a menstruating skunk 

1. An extremely foul smell caused from any multitude of malodorous, poorly combined noxious odors.

2. Something crawled up your ass and died.
1. (Used when America still owned industry)

Husband: That smells like the ass end of a menstruating skunk!

Wife: No, paper plant.

2. Person A: Did you fart?

Person B: No.

Person A: That smells like the ass end of a menstruating skunk.

Maestrobating

Self indulgent musical wanking.

Pleasing ones self through music.
He continued Maestrobating though no one liked the music he played at all.
Maestrobating by xtian December 2, 2005

menstrubating 

The act of when a female masterbates on her menstrual cycle.
She like menstrubating every month.

Sam Menstruating 

When Sam bleeds out of his coochie
Sam menstruating

Sam: “I hate all of you go die in a hole”

Connor and friends: “Wow, Sam began menstruating”
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
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
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