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.
A derogatory word/ racial slur that is used towards aliens.
Hey look at Jim over there in his UFO, what fucking greener 👽
What's up my Greenaa
Greener by Alien Technology February 7, 2021
A player (toon) on the game ToonTown who deliberately gives low toon’s a hard time. (Makes them go sad by not helping, using low gags, refusing to toon them up, hacking in extreme cases, etc.)
You greeners are leeches! Now get out of my sight! -Coach Zucchini
Greener by Justicewithtacosandweed November 15, 2019
When you smoke so much weed the night before that the next morning you are still a little high, and still have the munchies.
Damn dude, I had such a bad greenover this morning I couldn't get up for work!
greenover by abee89 August 19, 2009

greenery 

Wanna go fetch some greenery?

Wanna take a hit off the greenery?
greenery by Nicole February 15, 2004

greenarrhia 

green diarrhea, resulting from excessive overeating of asparagus and other cooked green vegetables
Adam became a vegetarian and ate too many green vegetables last night. This morning he had a bad case of greenarrhia.
greenarrhia by joseph blough April 27, 2014

Project Greenberg 

An over zealous plan to build a city made entirely of Lego's. Devised in 2006 by a group of driven and charismatic individuals.
"Man, that Project Greenberg was a huge flop."
More from Urban Dictionary

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
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026
Load more