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Tagasaurus Rex 

Someone who far too regularly tags photos on Facebook at every possible occasion. These photos are usually unwanted.
Izzie: Hey Phil and Dan, that girl Holly Rodrigues has tagged another Facebook photo of you.
Phil: For fucks sake Rodrigues...
Dan: That girl is such a fucking Tagasaurus Rex!
Tagasaurus Rex by bbbots February 24, 2012

Stacosaurus 

The offspring of a taco and a stegosaurus.
Julia's socks have stacosauruses on them.
Hey look! A stacosaurus!
Stacosaurus by Stacy Brindstock August 17, 2018

Titosaurus 

A girl with tits so large that they would be proportionate to someone the size of a dinosaur.
Did you see the rack on her, she was a real Titosaurus, I'd love to motorboat those monsters.
Titosaurus by Jay bonjo July 15, 2009

Theosaurus 

The dinosaur god, or the lord of all the great lizards. A unique specimen, the skeleton of which has never been found, but the image of which appears in many of the earliest cave paintings, depicted as a giant bearded lizard seated on a cloud or floating in a celestial environment.
Early Brontosauri used to raise their heads and low to the sky in praise of the mighty Theosaurus.

Later Brontosauri built piles of rubble in homage to him.

So we assume...
Theosaurus by thesvenhunter April 24, 2006

Torosaurus 

Fans' nickname for the rad lead guitarist/backup vocalist of My Chemical Romance, Ray Toro.
He even has a T-shirt that says "Torosaurus" :)
Torosaurus by C. Lam May 24, 2006

Twatosaurus

A person being a huge pain in the ass, whom you have a strong disliking for.

Or A very large vagina
Did you see Kaleigh today?
Was she being a Twatosaurus as usual?

Oh my God thats the biggest vagina Ive ever seen, its a Twatosaurus!

I got nervous her Twatosaurus was going to devour me
Twatosaurus by Eliza Pompus September 23, 2011
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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