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tailbacks 

traffic backup initiated and maintained by thoughtless idiot gawkers preceeding a road-side human specatcle.
"I managed to get the bike on to the hard shoulder, and jump of it at a sensible speed. As it groundto a halt on the shoulder, it went pop three times, and turned into a ginormous fireball. I caused huge tailbacks, got on radio 1 travel time, and even into some of the papers..." -Dr.Nick R.
tailbacks by hilarleo December 5, 2004
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Glastonbury Tailback 

Where someone manages to go for days without pooing at a music festival to avoid the toilets and their dreadful conditions
I just went to the toilet to get rid of my Glastonbury tailback from the weekend.

no u no takebacks 

me : your mum gay
Friend: no u

Me: no u no takebacks

Tailcocks 

A cooler, more fun process of drinking cocktails. Adults drink cocktails. Pimp-daddy party boys go out for tailcocks. If you're feeling really frisky, you go out for some tailcockadoos. Does not necessarily mean to drink only mixed drinks. Can include beer and wine as well. Is more of a state of mind.
Yo, brothaman, what's the haps for tonight? You up for a few tailcocks?

oooohhhhh yeah, let's chug down some tailcockadoos my man!
Tailcocks by Johnny McCalister October 6, 2011

No u no tackbacks 

the end of the no u
me: your mum gay
friend: no u
me:no u no tackbacks
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
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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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