Semen Monster

Name: Semen Monster Mug
Brand: Urban Dictionary
Price: 25.00 USD
Availability: InStock

After you cum, the uncleaned semen group together to form a chunky piece of shit -the Semen Monster. The leftover semen can come from a variety of places: laptops, bathrooms, tissue paper, vaginas, even your belly button. As the Semen Monsters multiply, they scheme to take over all vaginas, and pollute our offspring with semen DNA. Nasty stuff!

Timothy: Hey, just finished jacking it.
Lancelot: Ooh, better clean your junk, the coagulated semen might group together and burst out of your cock and turn into a Semen Monster.
Timothy: Just like in Alien?
Lancelot: Just like in Alien.

Semen Monster by thighmaster69 November 10, 2018

Get the Semen Monster mug.

Urban Dictionary Merch

Your favorite words on things you can wear, drink from, read, or give to a friend.

The Urban Dictionary Store sells gifts you’ll have to explain.

Add to cart $24.95

Choose size $32.95

Choose size $49.95

Add to cart $29.95

semen monster

9 months after getting pregnant the screaming crying results

We went to the store and this semen monster was going crazy in the toy aisle

semen monster by Montelarlo March 28, 2017

Get the semen monster mug.

Semen monster

A person who’s loves to have multiple black partners and they take turns releasing semen inside of them.

I got a semen monster for use tonight(New York slang)

Semen monster by Htdghhjh April 1, 2025

Get the Semen monster mug.

Strawberry Semen Monster

Sex on da rag...

Last night Latwanda was on her period, but I unleashed the Strawberry Semen Monster anyway... Now I need to buy new sheets

Strawberry Semen Monster by DurkDurkDurka May 13, 2011

Get the Strawberry Semen Monster mug.

kidulting

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

Get the kidulting mug.

Boffin

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

Get the Boffin mug.

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

Get the Pee Calculus mug.

Dutty

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

Get the Dutty mug.