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Bad Move 

A very, very bad thing to do. Most often, when a bad move is committed, many people are made very unhappy. Short of the rape, torture, and murder of the Pope's favorite Sunday school pupil, a Bad Move is the worst possible thing to do.
Subtracting from one side of an equation and not from the other, suggesting that someone go outside wearing a black belt with brown shoes, or trying to bribe the ravenous Bugblatter Beast of Traal out of swallowing you whole when you only have 12 Altairian dollars to give it. All of the above are sufficient Bad Moves.
Bad Move by J_the_R December 23, 2005
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Big boy bad move 

When someone does something underhanded or illeagl. Such as killing, stealing, arson, Etc.
Jim: these guy's keep killing us.
Jack: ok I'm going to commit a big boy bad move.
Big boy bad move by Pvtpinecone January 13, 2020

Wet Weather silcon valley Burnin' Your Bad Move partner 

A clue you give in codenames
Wet Weather silcon valley Burnin' Your Bad Move partner for infinite

bad bitch move 

When you see a helicopter in COD Warzone, and you managed to ping the pilot instead of the helicopter itself.
I just made a bad bitch move dude, you should have seen it!
bad bitch move by Min9us March 18, 2021
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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