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yackasaurus rex 

Someone, typically a female, who takes 10 minutes to give you a simple answer. A chick you meet at the bar and find out her whole life story before your beer comes. A derogatory name to call someone when they are rambling on about nonsense.
Stay away from Yackasaurus Rex over there,...shit, I met her three minutes ago and I know more about her than I know about your mom...and me and your moms go back, way back.
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Yorkasaurus Rex

A subspecies of the Tyrannosaurus Rex that has successfully repopulated the world today. The Y. Rex is prone to sudden random dinosaur-induced outbursts and often struggles to extend its arms with a ritualistic arm dance to increase the efficiency at which it captures its prey.
Dayumm, look at that yorkasaurus rex's pro fishin skillz!
Yorkasaurus Rex by dwaiky December 3, 2009

Yorkasaurus Rex

A specie that fails to capture any fish to sustain its needs with its short arms and therefore resorts to other tactics in an attempt to lure the fish into its trap with its bait.
That Yorkasaurus Rex may not have long arms but just look at his hotness!!
Yorkasaurus Rex by Yorkology. February 3, 2010

Yankasaurus Rex 

A prehistoric bug found mostly in Pennsylvania showers. This bug is known to tug on body hair. It is very illusive and has never been photographed.
"Jordan I just saw t Yankasaurus Rex yank on your back hair!"

yappasaurus rex

it's literally just somebody who talks a lot. they do not and will not shut up, they talk about the most random shit, all day, and nobody fucking knows what they're saying. the master of talking too much. (can be used in a positive or negative connotation)
Jessica: Hailey is literally going to drive me insane with her talking. Like, she's literally a yappasaurus rex she does NOT shut up.
yappasaurus rex by cyb3r_b4tzzz February 27, 2024
More from Urban Dictionary
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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