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1969 Mustang Fastback 

Car driven by old men that think they are still cool. More then likely also have beat up Harley of some sort. The car will usually smell like bacon or jalapenos. The reason for this is still unknown.
"Hey look at that moron over there." "Wow! He must drive a 1969 Mustang Fastback."

fatback chopper 

Cleaving the buttocks in twain. Similar to a danza slap right along the buttcrack.
The bitch didn't like it in the ass so I had to teach her what's what with a Fatback Chopper.

Fastrack Wanker 

Someone who purchases and uses fastrack tickets to beat the queues at theme parks.
Have you only just come out of the ride? It's been ages!

I know. There were so many fastrack wankers going in before us.

The queue is really long. We should probably fastrack it.

But we don't want to be fastrack wankers!
Fastrack Wanker by BLNTSVRT October 28, 2011

Dirty FastJack 

When you’re playing Xbox and you kill somebody and they spawn behind you and start fucking you with a used sock and then finish in both of your ears. Then they will keep fucking your mouth until the semen in your ears comes out of your mouth
Wow a dirty FastJack gets after it
Dirty FastJack by Benny157383 January 12, 2023
Late 60's, early 70's style funk rhythm guitar, often accomplished using a wah pedal and 9th chords. Listen to the theme of "Shaft."
That dude's layin down some bad-ass fatback.
fatback by Andy December 26, 2003
A term of utmost hatred used to define someone with a weight problem; this term should not be used in reference to someone who could kick your ass, only in situations where the fatass is totally immobile or just a pussy.
Hateful Person: Put those Cheetos down you fucking fatback
Fatback: Dude, I'd hit you if I could get up off this bed.
Hateful Person: Yeah, you're fuckin-a right you grotesque fatback mother-fucker.
fatback by Raagers October 18, 2004
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
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