Skip to main content
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.

Prices in USD. Free US shipping. International shipping and regional book fees are shown before payment.

A sexual act in which three males, performing oral sex on one another, are positioned such that they form a real-life "Impossible Triangle" optical illusion, also known as the Penrose Triangle.
"I couldnt believe my eyes when I saw Owen, Jack and Kevin in the Penrose!"
Penrose by atsymbol March 30, 2015

Penrose, Colorado

Tiny town that's boring as fuck. Population? Counting sheep, goats, horses, donkeys, cows, chickens, camels, cats, dogs, mice, rats, snakes, buffalo, mountain lions, deer, coyotes, and jack rabbits... There are too many to put. The only way you'll get a piece of ass, is if it's a donkey. (There are donkeys everywhere..) Full of hick farmers who LOVE sheep. We've got a watered down version of every clique that ever existed. Jocks, Emo's, Skaters, Preps, Gangstas, etc. Everybody knows everyone...so watch who you sleep with!

Trailer trash is the upper class.

We made it out alive. Hope you can do the same..
Visitor to Penrose, Colorado - "Let's go to the park!"
Resident - "No..it fucking sucks.. We only have one park. And they took away our merry-go-round.."
Visitor - "What pricks!"
Resident - "Fuck the government.."

Example 2:
Resident - "No..wait! The one fun time around here.............."
-five minutes later- "......we don't have fun times here.."
Penrose, Colorado by BigToe3 February 18, 2011

Penrose Triangle 

A mind blasting object that is made out of pure impossibility and under suspicion to be created by Satan.
Often used by math teachers to show 'How cool math can be'.
Also referred to as:
'Penrose tribar'
'Penrose crap'
'But this side goes below that bar and...wait, what?'
'F*CK-THIS-THIS-STUFF-IS-IMPOSSIBLE-angle'

Because it generates so much frustration if tried to comprehend it is also the main reason for suicides of kids under the age of 12 ( Just above Spinach ).
When I tried to re-build the Penrose triangle it vaporized my braincells to tiny bits!
Penrose Triangle by ImFromGermany December 30, 2010

penrose steamer 

When you hate your ex and shit on his porch.
Sarah took a Penrose Steamer on Jakes trailer porch because she was drunk.
penrose steamer by Dirty Sheets August 23, 2016

Penrose Poppet 

The embodiment of qualities thought impossible to exist simultaneously in a single example of womanhood. An impossible figure. Believed to be mathematically impossible. Synonyms: Unicorn, Real Geek Girl, Waifu. Related to Escher Staircase, Blivet.
James has been dating a Penrose Poppet for about a month now and he's going to be severely disappointed when he discovers she's an actual human being and not a mythical creature after all.
Penrose Poppet by Ephemily October 10, 2017

Working Up A Penrose 

A cock that is semi-hard but extremely red after repeated masturbation or a marathon sex session. Resembles a Penrose brand sausage.
Devon watched porn all weekend long and was working up a penrose after two days of repeated wanking.
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
Load more