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A Game Where you cuff Your Hand and Your Enemys Hands into One, both Lifting Your Thumbs And say '1,2,3,4, i declare a thumb War!!'(maybe something other) and try to pin the enemys Thumb under yours. You may only use 1 hand. the winner who pins his enemys thumb down for a short time(5-10 seconds) wins the so called war.
Me And austin Had a thumb War last night, i totally owned him.
Thumb War by Sythex July 16, 2007
Texting battle; Fighting through text messaages; Sending and receiving mean, nasty negative text messages back and forth with someone.
"Ashley and Derek were engaged in a nasty thumb war last night."

"Damn, that was a ugly thumb war!"

"You should see some of the outrageous things Caitlyn wrote to Carrie during their thumb war. She definitely won that one!"
Thumb war by JacDod August 20, 2011
On urbandictionary, a thumb war consists giving your own definition a thumbs up and giving a rival's definition a thumbs down on a daily basis while said rival does the same for himself. A thumb war is won when one of the contenders forgets to vote and/or gets a life.
I hope the addition of this definition doesn't provoke a thumb war.
Thumb War by y=mx+b January 23, 2009
When you and your girlfriend/boyfriend inch your thumbs closer to each other’s anal cavity until penetrated. Whoever yells mercy first loses.
Yeah bro, me and Kaylee did play “Thumb War”. Too bad she won.
Thumb War by Childo Chief October 15, 2019
When a man inserts one thumb in a woman's vagina and another in her asshole and twiddles his thumbs.
Mike could not win the thumb war while playing with Jenni last night, but Jenni won.
Thumb War by TopThree October 6, 2017

Québécois Thumb War 

An age old tradition in the Canadian province of Quebec. This means of competition involves two combatants, the first competitor to shove his thumb up the other's anus is the defined victor. The provincial champion also gains the honor of being the leader of Quebec's Bloc Québécois Party.
"My father will not admit that I am a man, I will defeat him in a québécois thumb war." - Jim

"Mario Beaulieu is an idiot, I wish someone would just challenge him to a québécois thumb war already" - Jean
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
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
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