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A TfL London bus service that runs from Romford, Queen's Hospital to Brentwood Sainsbury's in Essex via Romford Station, Gidea Park, Gallows Corner, Harold Park and Brook Street. The route operates daily with a 20 minute frequency and was introduced on December 26 2005 to partially replace route 351 between Romford and Brentwood which was withdrawn Mondays-Saturdays, but it wasn't until June 2007 that the 498 gained a Sunday service so the 351 continued to run from Romford Station to Chelmsford on Sundays. On April 27 2013, route 498 was extended to Romford, Queen's Hospital. One of twelve London bus routes that also goes into Essex and serves one of the most easternest part of the London bus network as a normal service (although school route 608 continues to Shenfield).
"I'ma ride the 498 to Brentwood"
"bro there's nothing in Brentwood High Street these days take 370 and go Lakeside"
"no bro I want to go to the furthest east on the TfL network"
498 by niceabcd May 4, 2026
Short hand for "I want to die". Used by people who apparently just don't have the time to type that shit out.
4983 by Dab dneirf February 12, 2021

498573298467 

Why would you look this up? Do you have some sort of mental problem?
Person 1: 498573298467
Person 2: What?
498573298467 by Macabitz January 3, 2021
I don't think you would get the joke.
Basically, I just say it a lot. Okay bye.
person 1: 4989
person 2: what
person 1: you wouldn't get the joke

Rule 49824776541208479028641672843 

Time and space is endless, you will never reach the truth. You will stand upon the requiem meant for your will and realize that meaning itself has no meaning. Life isn't life. You are not you. You don't exist. Nothing exists. But that's what makes living so fun. It is to create your own meaning. Live on
Rule 49824776541208479028641672843 is meaningless. Quite ironic
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
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