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sperm competition

The theory that the sperm from two or more males will compete with each other inside a females reproductive tract to fertilize her egg.
Sperm competition should insure that only the most virile of males father offspring.

Competition psychosis

An altered state experienced by participants and/or fans of a sporting event which render them incapable or rational thought. It can occur before, during, and after the event. Face painting and conspiracy theories are all examples of people experiencing competition psychosis.
Dude 1: Can't believe how those refs were cheating my boys.

Dude 2: They lost by 40.

Dude 1: The refs hated us.

Dude 2: You got a bad case of competition psychosis if you believe the refs were the reason for that ass kicking.
Competition psychosis by DDJudge December 18, 2012

Canadian competition 

The act of challenging someone to bigger act of kindness war.
My roommate challenged me to a Canadian competition, he did my dishes so I cleaned his room and did his laundry. I win, for now.
Canadian competition by Bert Bravo August 21, 2017
Word of the Day on August 22, 2017

Dirty Man Competition 

A competition in which a man does not shave his beard of cut his hair for 1 year. During said year people who dared the man to enter the contest, provokes him to shave his beard and thus losing the competition.
Seth Rogen's friend in the Movie Knocked Up, dared him to enter A Dirty Man Competition by convincing him if he succeeds his roommates would pay his rent, if he fails which he did he would have to pay everyones rent

Competional 

One who is highly competitive and confrontational.
Derek is competional when it comes to winning games.
Competional by Nigfish September 24, 2011

choice and competition 

Knowing that Americans believe in free market capitalism, regulated by "choice and competition", the Obama administration uses these poll tested words to refer to their government run health care plan in order to distort the fact that the government can print it's own money, an ability that puts private insurers at a significant handicap if in "competition" with Uncle Sam. A fact that will drive all but the richest people out of the private system and into what the Obama administration really wants; total government control.
I sure love the beer barn for drinkin' beer and playin' pool, but it'd sure help "choice and competition" if the federal government came and setup a "Fed Barn" next door that sells beers for 5 cents a pop after it takes the other 3 dollars out of my paycheck regardless of what bar I go to.
choice and competition by default013 September 30, 2009
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

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
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