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.

Undergrad Railroad 

When cops show up at a party and partygoers organize an evacuation for underage drinkers.
"Shit, the cops are here. We need our biggest, most diplomatic friend to delay them at the front door while the rest of us get the train rolling down the Undergrad Railroad."

undergrad drunk 

When someone who is no longer a college undergraduate gets as drunk as they did when they were a college undergraduate, that person is said to be 'undergrad drunk.'
It's 3pm and Jeff is still puking. He must have been undergrad drunk last night.
undergrad drunk by six December 29, 2004

Underground Aussie Hip Hop

A non-commercialised non-profit Rap scene. A style of Australian rap music where rappers choose not to 'sell out' to Record Conpanies & instead produce their own Recordings whilst maintaining other forms of financial income.
Guy a) bro, u know any good Underground Aussie Hip Hop beats?

Guy b) yeah sus out #undergroundaussiehiphop on Instagram! Google Celebrity Pete Laan is a fan of that shit

Fundergrad 

A term often used by graduate students or young urban professionals for students in a university or college who has not received a first (often a bachelor's) degree who frequents the social scene with a revealed strong admiration for the more educated and experienced population.

undergrad freshmeat cougar bait cougar hawk cougar hunter golddigger elitist snob yuppie
After an evening of intense work, the young graduate students decided to head to the bars often frequented by fundergrads. But trust them, these half-lawyers are just looking for fun.
Fundergrad by Half Lawyer January 30, 2009

Underground 

Un•der•ground (un’der ground’), n., adj.

1) A genre in music and other forms of media intended for an elite audience, that is often characterized by its high levels of originality and experimentation, and does not conform to typical standards, trends, or hypes as set by the popular mainstream media.
The mainstream media has a tendency to steal new ideas from the underground.
Underground by Essix April 16, 2005

Kosovo underground army. 

Kosovo made an underground army after a very lurcative deal with China and Kanye West is secretive leader of this cult and army. He was able to donate the money he got from donda to this army. it’s for the Albanian cause. Its main purpose was to protect and save humanity from any upcoming dangerous or even deadly disease may appear among us. Let’s look at covid-19, it’s a more deadly varions than the other covid viruses they used some Oslaedstechnology to help making the cure. The Main Oslaedstechnoligical was Alina West.
Person 1: hey, I’ve heard about the Kosovo underground army. What’s that?

Person 2: secretive place, we shall not talk about it.
More from Urban Dictionary
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
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
Load more