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Morosaurus

A semi aquatic monster/dinosaur that comes out and beats kids with anything available. If it be a pole or a canoe paddle, no one is safe. A morosaurus is very protective of his turf and will defend it at any cost. If you ever run across a morosaurus, the only way to escape is to yell "You won't" or "Square Up" as loud as you can. He will see it as a very offensive act and will scurry off into the wilderness.
That creature looked alot like a morosaurus!
Morosaurus by Coolman421 August 19, 2015
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momasaurus 

over protective, yet micro-managing mother who uses guilt to try and make you change your mind
Everytime I try to explain to my momasaurus my future plans she gets upset and then tries to discuss how if I do it a different way my life would be easier.
momasaurus by ooober goober March 25, 2010

Moronosaurus 

A Moronosaurus is The dumbest mammal on earth. The variation, Moronosaurus Rex, is the dumbest of the dumb.

Ever have someone that is so dumb it's mind numbing? They are most like a rare species of Moronosaurus.
That Don is such a moronosaurus. He can't do anything right.

If I have to listen to that moronosaurus one more time I think I might have to join the School of Dumbasses.
Moronosaurus by Bodily Harm August 17, 2008

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

moronasaurus 

someone so utterly stupid that you're amazed that they even know how to breathe.
You voted for Bush? What the fuck kind of moronasaurus are you?
moronasaurus by Bulldog6 October 7, 2006

morgasaurus

The coolest, hawtest, smartest, sexiest chic you'll ever meet! A little bitchy at times, but shes the bomb.
Dude: Your such a morgasaurus!!!
Me: Gawd do i know.

Mosasaurus 

The best prehistoric animal ever. Another nickname is “mosasharkus”
Person one: “I wish the mosasaurus was still alive”
Person 2: “We’d all be dead”
Mosasaurus by mosasharkus April 11, 2021
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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
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