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X.f.X 187™️ 

X.F.X 187™️. Is a thug Life way of living. And is a part of murdered out Empire 187™️ close line it means two strike feleon
Aight G you ready to do this hit. Even tho we both have X.F.X 187™️ as it is anyways G... fuck it let's do it????
X.f.X 187™️ by k187c October 3, 2020
when the output of a particular function is always equal to 11. Common notation variations include fx11, fx=ll, or fxll.
"Damn, I love functions, especially that f(x)=11 thing, its so easy" - some random guy.
"*moans* fxll-chan" - Owen
f(x)=11 by s3m3nd3m0n June 10, 2022
f(x) is a South Korea-based girl group formed by S.M. Entertainment in 2009. In August 2015, it was announced that Sulli had officially left the group to focus on acting. The remaining members: Victoria, Amber, Luna, and Krystal, continued as a group, releasing their fourth studio album, 4 Walls, in October.
Why did Fifth Harmony Camila's departure reminded me of Sulli leaving F(X)...?
f(x) by jennie kim December 28, 2016
The first derivative of a function. See calculus.
If f(x) is equal to x^2+2x+5
then f'(x) is equal to 2x+2.
f'(x) by ManMan36 May 23, 2016
f(x) (Korean: 에프엑스; pronounced /ˌɛf ˈɛks/) is a South Korean girl band formed by SM Entertainment. The group made their debut on September 1, 2009.

The members are:
- Victoria (Leader, Lead Dancer)
- Amber (Main Rapper)
- Luna (Lead Vocal, Main Dancer)
- Sulli (Vocal, Rapper)
- Krystal (Maknae, Main Singer, Main Dancer)
A : Ugh, I don't get this whole f(x) thingy.. (Looking at the math book)
B : What? how come you don't get them?! F(x) is like one of the hottest girl groups from South Korea!
A : Eh?
f(x) by affxtionate June 20, 2011

F F X A 0 

the coolest person alive
i am ffxa0
F F X A 0 by ffxa0 March 7, 2004
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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