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Cosblock 

Someone Who Is At A Convention Where People Dress Up As Characters From Anime, Movies, TV Series, Or Other Fictional Characters And Steals All The Attention From You Trying To Show Off Your Amazing Cosplay Outfit And Looks In Said Outfit Even Though You Look The Part Perfectly!
Everyone Was Watching Tym Dressed As Dante Instead Of Trent Dressed As Virgil

At Ohayocon 2012. Trent Pushed Tym And Said, "You Cosblocker!"

The New Dante Stole All Of The Attention From The Old Dantes At Ohayocon, He Cosblocked The Entire Day. Stealing The Attention From All Other Cosplayers.
Related Words

Coologen 

The substance all things cool are made of.
Dave: What's that?
John: I don't know, but I do know it's made of solid coologen.
Coologen by Largemanislarge September 9, 2010
When you combine "coldboxing" (shutting the doors and windows with the window a/c on to create a cold box/room) with "hotboxing" (shutting the doors and windows while everyone smokes pot so all the extra smoke is contained and inhaled). Cool times!
Oh man, once summer starts, we gotta coolbox your apartment and watch Mean Girls!
Coolbox by lesleygee June 28, 2010

Cookblocking 

The act of using up ingredients in the fridge so another cannot cook what they intended to
Me: Jim where's the cheese?
Jim: Oh I ate it.
Me: God damn it Jim stop cookblocking me!
Cookblocking by Geekycoconut March 17, 2013
Cooler than cool. the coolest anyone can possibly be.
Wow, Phil is cooloer.
Cooloer by spaghetti princess June 16, 2018
A unit of measurement equivilant to 8.04 inches commonly used in Canada. Named after Arthur D. Cooble, the 4th Education Minister of Canada, the Cooble (Koo-bowl) was the premier unit of measurement from 1904-1978. With the introduction of the Metric System, the use of Coobles is being systematically phased out. However; In rural Canada many signs using Coobles are still in existance aswell as on many vehicles manufactered before 1976.
Man, my car is really slow. It can only go 350 Coobles per second (C/PS)
Cooble by Bobsmithers February 1, 2008
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
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
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