Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

Prices in USD. Free US shipping. International shipping and regional book fees are shown before payment.

letters in math 

"letters in math" are like a torture, u can feel the bad vibes in the classroom when a teacher say "x worth this and this and bla bla bla"
letters in math by Pretty_Boi June 24, 2021

The Four “F” Words in Math 

FEAR of not understanding the new math concepts.

FRUSTRATION in struggling to make sense of the concepts.

FATIGUE from mental stress and emotional pain in grasping the concepts.

FAILURE in mastering and applying the concepts.
Winners have not only banned the four-letter F-word from their vocabulary when faced with the most disliked school subject, but they have also refused to let the four “F” words in math rent a space in their minds.

national kiss the person who sits left of you in math and history day 

Yep January 13 is national kiss the person who sits left of you in math and history day
Hey why did you kiss me?
Well don't you know? It's January 13 and you sit left to me in math and history

Oh ok cool, I love national kiss the person who sits left of you in math and history day

girl in math class 

Typically a rich white girl possibly non-white but unlikely, She is annoying rude snobby and rich. She says she works for everything she has but she doesn't. She normally will have over 100 followers on tik tok or instagram, She is normally seen with braces or invisa-lign because she has horrible teeth. Her gums tend to be large or inflamed looking and pale. She wears glasses and often has straight hair. She may go by the names "Kylie" "Lauren" "Madison" "Hope" or "Charlie" or really any white girl name. She thinks she is extremely popular when most of her friends are only fake friends who are there for the money, Girl in math class often appear around 5th-6th possibly even as late as 12th grades but no younger than 4th grade and no older than 24yo. She thinks she works hard when she really just sleeps with the teacher or is getting "daddy's money", girl in math class is such a popular term that rapper "Juice Wrld" or "JuiceTheKidd" or "Jarad

Anthony Higgins" mentioned the term in his hit song with "Benny Blanco" "Graduation". When girl in math class gets a bad grade she will often say that she was absent but bad grades are uncommon with girl in math class because she sleeps with the teacher no matter what the gender of the teacher is. You do not want to be a girl in math class.
"damn bro she a real girl in math class"
"I know she is so annoying and her gums are bigger than her teeth"

bored in math 

When you are bored and math and have nothing else to do
Ugh... I'm so bored in math
bored in math by lenord01 January 8, 2020

X (in math) 

X has been mathematically proven being equal to 9. Famous mathematician Nicolai Svelland was the man to find out this miracle and solve many math problems across the world. (Nicolai is currently eating noodles and is solving Hodge conjecture)
You can X (in math) in problems such as x - 5 then you know it would be 4 since 9 -5 = 4
or you could drop the quadratic formula since you know its 9.
X (in math) by Thicc Duck 69 September 15, 2021
More from Urban Dictionary
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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Load more