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the act of being unkind
Niko is being un-nice
un-nice by Dancer✌️ February 25, 2017

dented helmet, nice uniform

a girl with an ugly face but nice body
" Man, Alisha has a dented helmet, nice uniform."

understandable have a nice day

It is understandable, so you may have a nice day; even if you didn't get your ice cream from McDonalds.
"Hey you got some food?"

"Sorry food broke"

"Understandable have a nice day"

F.U.N.! (Fuckin' Uber Nice!) 

Something you say when you're having a fuckin' great time!
F.U.N.! (Fuckin' Uber Nice!)

Be Unconditionally Nice to Each Other Day 

On December third, everyone is legally required to be unconditionally nice to each other. Anyone who fails to comply will be sentenced to three months of obsessive hugging.
"Man, I'm tired of all of these internet day thingies. Yesterday was skipping school day. The day before was about sending nudes to people who completed NNN. The day before was about stealing hoodies until someone notices. Why can't we have a day where we just do something nice for each other?"
"What if we had a day where we were all just unconditionally nice to each other? It would be called "Be Unconditionally Nice to Each Other Day."
"That sounds really difficult to say, but okay."
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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