Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

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

mackasaurus

a total playa. A guy who just spits game nonstop.
-Did you see scully hitting on those sophomores last night?
-Yeah, he was being a total mackasaurus.
mackasaurus by fukgoombchicks November 10, 2009

mathasaurus rex 

one who likes to shriek and growl when sexually excited by math problems, sometimes waving their arms in a dinosaur-like fashion.
when jimmy began to grunt as he started the math test, there was no doubt he was a mathasaurus rex.

Mika (Mikasaurus) 

The most amazing non-professional singer in the entire universe. He is also the last remaining Mikasaurus in the entire world. He's really nice and funny and awesome at everything. He will completely deny these facts because he's too modest. He's amazing and I love him. (:
"Where is Mika (mikasaurus)?"
'Off being amazing."

Mansaurus 

A comprehensive tome of reference and learning on how to be manly. For some, manliness doesn't always come naturally, and the Mansaurus is an essential guide on how to behave in a manly fashion, use manly words spoken in a deep manly voice, and use one's body language to show how manly one is. Many famous manly celebrities allegedly have a copy tucked away including Chuck Norris, Daniel Craig, Russell Crowe, Madonna, Pink, and Fergie from the Black Eyed Peas.
"Daa, I knew I was in love with her da moment I saw her Mansaurus fall out of her manbag as she lifted her leg to fart"
- Sylvester Stallone reflecting on his marriage to Brigitte Nielsen
Mansaurus by aaaaajon January 2, 2012

maxasaurus 

A jewish flavored arm leg that if covered in enough ketchup doubles as an explosive nigger hat because of the orange short wet jeaned crooked talk in the horse chatter of the day because you dont want to see all of my sugar skull anuss
Hey want to go maxasaurus with me, Yeah let me grab my ketchup
maxasaurus by Dabigegg October 29, 2011
More from Urban Dictionary

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

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
Load more