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.
the act of masturbating excessively due to laziness or difficulty in finding pussy.
Ever since Arton got rejected by Tamara, he just spends all night blaking off at home.
Blaking by Emonster17 December 2, 2010

blacklist 

1. a list of banned or undesirable people

2. to put someone on a list of banned or undesirable people
It seems that there are too many counties out there that will blacklist you if you are a citizen and disagree with them.

blacklight party 

a party in which all normal white lightbulbs are replaced with blacklight lightbulbs. all guests should wear fluorescent clothing (mostly white) that will glow in the blacklight. also, bring lots of highlighter to draw on one another since the ink glows in the light.
"i have to go shopping for the blacklight party tonight! gotta get something fluorescent."
"dude, last night i got wasted and passed out at the blacklight party. when i woke up, i was covered in glowing highlighter."

Blacklite District 

Alternate band famous for songs such as Cold as Ice and Hard Pill to Swallow. Also popularised by the Minecraft animator Rainimator.
Blacklite District's new song is SWEET!!
Blacklite District by SkeletonGuy November 21, 2018

blaylist 

A playlist about your ex’s new partner.
My brother listens to his blaylist every time he is in the car.
blaylist by XanderK555 March 27, 2023

Blacklight Barbie 

A woman who appears much prettier in the blacklight at a party/club than she really is.
"After having seen Whitney in the Daylight, I realized shewas a total blacklight barbie."
Blacklight Barbie by DB January 13, 2005
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
Load more