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off the dome 

improvised, as in freestyle raps (dome=head).
"bitch you gone / I freestyle, I'm off the dome"
-lil flip
off the dome by scose January 18, 2005

Straight off the dome 

The action off coming up with an original idea or answer.
Justin: Eric, how in the world did you ace that Calc test?
Eric: Easy, it was straight off the dome.

off the dome 

Totally amazing, incredible, and mind-blowing.
That concert was off the dome!

My new screenplay is off the dome!

My Jabba the Hutt socks are off the dome!

Off the dome 

That came/happened out of nowhere and without any warning
He literally just came and asked me to marry him, off the dome…so of course I said no
Off the dome by ChainSmoker530 June 14, 2021

Off the Dome 

a lackadaisical term to refer to someone who spoke off “the top of their head”. Not to be confused with getting brain.
Bozo 1: Hey did you say that off the dome?
Bozo 2: yeah it was off the cuff
Bozo 1: wow you must be so eclectic and interesting

Off the dome 

Mans is off the dome for rejecting her cuz she fine as hell
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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

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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