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.

Being a stoned as humanly possible. Some call it "too high" but many beg to differ. Seems to have originated on reddit from some of the ents.
Never watch a horror movie at a 10
[10] by HappyWafflez November 10, 2010
Related Words
101 • 10-10 • 10 • 10 4 • 108 • 100 • 100% • 106 • 100 gecs • 102
Top grade woman (= 10 out of 10). From the movie '10', featuring Dudley Moore and Bo Derek.
Look at her... she's a 10!
10 by starflier December 8, 2003
It's a number you idiot what are you doing searching this up you know very well what a number is.
10,9,8,7,6,5,4,3,2,1
abcdefg 10 kids are stuck in that tree
10 by qu33r b0i November 25, 2017
Quick and somewhat widely used word to claim someone of the oppisite sex is of the top percentile in looks, sexual skills and/or personality.
"Damn B, that BITCH IS A 10!!!!!"
10 by Brandon Wann May 13, 2005
Means two in the binary (base-2) numeral system.
Means three in the ternary (base-3) numeral system.
Means four in the quaternary (base-4) numeral system.
And so on...

One exception is the unary (base-1) system, where 10 probably means "WTF? ^^".
Caveman: 10 is WTF? ^^!
Computer: 10 is two!
Octopus: 10 is eight!
Modern human: 10 is ten!
The Hitchhiker's Guide to the Galaxy: 10 is thirteen!
Haxxor: 10 is sixteen!
God: 10 is infinite!
10 by Oxeye Daisy October 15, 2006
(1)1, 2, 3, 4, 5, 6, 7, 8, 9, 10!
(2)2 in binary
1) I can count to 10!
2) There are 10 types of people in these world: Those who understand binary; and those who don't.
10 by KhAoS November 15, 2003
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

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Load more