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Someone who doesn't do much. Lays in bed a lot. Nothing to live for. Probably NEET, coomer and gamer as well.
- What happened to Jim? I haven't seen him in a while
- He's a full time rotter now. Really likes his vidya
- Unlucky
Rotter by SIX HOT LOADS June 5, 2023

Rotterdasm

A discharge of neuromuscular tensions at the height of sexual arousal that is usually accompanied by the ejaculation of semen in the male and by vaginal contractions in the female... IN ROTTERDAM
I have been in Holland for 6 months and just had my first Rotterdasm.
Rotterdasm by antfox July 21, 2009
A person who is a detriment to society, someone completely worthless.
Ed is such a rotter.
Rotter by ScrewMonkey October 26, 2004
Someone who is generally subversive, deviant, shameless and attracted to the more gutter styles of existence.
"Look at that rotter over there, he's shit his pants, he's pissed out of his face, he's just shagged that whore without a johnny, there's red wine stains all over his lips, his eyes have gone yellow, he's got odd socks on, the flies seem to be following him, there's a belt wrapped around his arm, he's dragging a dead dog on a lead, oh and look, now he's vomiting down his front!"
Rotter by Rory Lafferty November 16, 2007

Rotterdamned 

Controlled demolition by the Erasmus RSRC rugby team from Rotterdam, The Netherlands. First used after the game against Emma Rugby Club.
The Erasmus RSRC really Rotterdamned those guys from Dordrecht.

Rotterdam 

The place to be. There is no place better than Rotterdam. Everyone should definitely live there if they have any life at all.
Guy 1: You see that place?

Guy 2: Yes. What is it?

Guy1: It is Rotterdam, the best place ever.
Rotterdam by Aith Martinez June 14, 2009
More from Urban Dictionary

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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026
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