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Mischievious 

A common and disgusting mispronunciacion and/or spelling of the word mischievous. Mischievous is pronounced "miss-CHI-vus" and there is no "ious" about it. Some people insist that mischievious is an "alternate pronunciation," but only in the way that irregardless is a synonym for regardless--that is to say, only for fucking retards. Some argue that it is the evolution of language, but changes like this are driven by the illiterate and the ignorant, and it is careless to embrace them. And embarrassing.
"I'm intelligent and mischievious!" (oxymoron)
"Mischievous is not like devious, it's a completely different word you dumb shit." --Me
"Since everyone says mischievious it's not wrong." --what my dumbass friends insist if the subject comes up over strong drink.

Mischievite 

The kids were running around the backyard, screaming and laughing and behaving like a bunch of little mischievites.
Mischievite by Mr Tango Jones August 26, 2010

Mischievious 

trolling is an mischievious art
the dark prince slapped the bum of the bubblegum princess mischieviously
Mischievious by grrilaz June 12, 2011

Mischeivism

An art that is dabbled in, preferably by the cult of cheeky chops.
I am Mischeivism *snaps fingers*
Mischeivism by KRISPY BRATAN August 21, 2019

Mischievious 

Trouble making. Mischievous. Devious. Naughty. This word began as an alternate pronunciation of mischievous but really has since branched off to become its own word, with its own spelling and pronunciation. People who use the word mischievious when speaking often also understand and recognize the word mischievous when spoken but often do not realize that the two were originally the same word. One might then consider them to simply be different words entirely (synonyms with confusingly similar spelling). According to Merriam-Webster's dictionary, there is evidence of the spelling "mischievious" going back to the 16th century. However, some people still view it simply as a mispronunciation and not as an actual word.
He is a mischievious little boy.
Mischievious by Raingarden December 19, 2021

Mischievizing 

The art of coming up with mischief.
“She was mischievizing a plan!”
Mischievizing by AshaFaye April 12, 2024
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
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
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