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cornelium 

1. When a younger sibling tries to pull a fast one but the older sibling out-plays the younger

2. When someone can't spell "Cornelius" right

3. The word that rhymes with Helium
My sister was trying to be all cornelium on me yesterday but I was to smart for it. And look what I've done today!

Jim Cornelison

The absolutely best singer of the United States National Anthem, the "Star Spangled Banner". He has been singing the anthem full time for the Chicago Blackhawks since 2007 and has also made guest appearances for the Chicago Bears, most notably the 10th anniversary of 9/11 in 2011. That game was against the Atlanta Falcons. One thing that makes him so unique and special is the fact that his performances makes Blackhawk nation cheer at a level you can only call extremely patriotic from the beginning to the end of his performance. His signature move is to point at the American flag when he sings the line "that our flag was still there". Jim Cornelison is a true American Badass!
Vinny: Can you remember a time you felt the most patriotic when hearing our National Anthem?

Brian: Without a doubt it was on 9/11/11 when Jim Cornelison belted out the Star Spangled Banner with such patriotism and perfection that his deep tenor voice and the crowds cheers brought not only a tear to my eye but goosebumps that come back every time I hear him sing it.
Jim Cornelison by BV Jiglag February 25, 2013

Cornelia 

She is a beautifully, intelligent girl who is popular and very social. She's the nicest girl you will ever meet. She's the girl that can go up and talk to a stranger and become best friends with them. They are usually tall but very stunning and resemble models. She's an obedient rule follower. The perfect person to become friends with.
Person 1: I made a new friend today
Person 2: Was it a really pretty girl?
Person 1: Yea
Person 2: It was probably Cornelia
Cornelia by mawu23na November 9, 2018

Cornelis 

Derived from Cornelius in the book of Acts in the Bible who was centurio, head of a Roman army unit of a hundred men. Cornelis is a leader, strong, brave, straightforward and doesn’t turn around the bush. Cornelis is a man of honor and principles. He is also hot and much desired by the most beautiful women.
Cornelis by astra2017 August 18, 2017
the weird fucked up supporting pillars in a fence.
that's a fine lookin' corelum

Cornelio 

A sexy someone who goes on crazy wild adventures at night with his friends a lot. very awesome type of person who is true to all his friends. You'll always find him telling the truth no matter what. he is unique so when you find a Cornelio hold on to him, he won't let you down for an awesome night.
Girl: have you met Cornelio? Omg he's so cute and so fun to hang with.
Cornelio by Aka Hilfiger July 19, 2017
More from Urban Dictionary
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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