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.
When you jerk your homie in subzero temperatures
In Alaska, my man Calvin gave me a coolster
Coolster by Joe Ivy June 13, 2019

Really fucking coolster 

When someone has taken being part of the hipster crowd to a new level; best used in sarcasam or jest behind someone's back.
Wow, Jane just got a fullet and is going to the bright eyes concert tonight in williamsburg; she's really fucking coolster.
Really fucking coolster by jellygirl September 29, 2008

coolstorymybro 

Someone who is an absolute woke queen. They are scared of the government, and wears a tin foil hat just Incase their minds are read. They tend to be amazing at flirting and seducing. Also the queen of TikTok and the use of XD.
P1: omg i heard the government is trying to read our minds!
P2: omg what r u sure
P1: yes
P2: coolstorymybro!
coolstorymybro by anonymous February 3, 2019

cooster booster 

A true follower of Cooster, the true Buffalo Wizard
The Cooster Booster watched all of Coosters Youtube Videos
cooster booster by ThatBaconMan February 23, 2015

Coolserly 

The most annoying type of person. They think they're cooler than shit, when in reality, they are beyond loserly. This is the opposite of losecooly.
A:"Ugh that girl over there is so coolserly!"
B:"Why?"
A:"She is so obviously loserly, yet she's trying to hang out with the popular kids."
Coolserly by Loserlynat October 19, 2013

Cookster 

Describes when someone is being abnormally crazy or strange.
"That boy is a right cookster!"

"Haha, you crazy cookster!"
Cookster by ogcookster June 26, 2017
More from Urban Dictionary
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

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
Load more