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overfitting 

In statistics and machine learning, overfitting occurs when a statistical model describes random error or noise instead of the underlying relationship.

Also can be used to describe the excessively small sized clothing worn by large or obese persons.
That sumo wrestler's pants are overfitting.
overfitting by blackcamel May 20, 2014

overdating 

When a person is romantically involved with someone who is far more physically attractive than theirself.
John is so ugly, he's lucky to be overdating with Julie.
overdating by packphour May 30, 2006

Overdiction

1.when a word has more then ten definitions in the dictionary, mostly due to multiple possible uses.

2. when a word has over ten meanings on urbandictionary.com, just because an assload of people had to give their own personal touch on it and feal important in this way. The definitions usually mean the same damn thing but have been slightly modified to better fit one's vocabulary or style. On rare events, this occurs because one was unaware the word already existed on urbandictionary and thought they'd be wise to put it up. This can also be called originality theft.
1. the word set has to have something like 30 meanings... it's overdicted.

2. abercrombie has over 160 meanings on urbandictionary, I think at least 100 of them mean the same damn thing... when did overdiction become cool?

I overdicted a word I thought wasn't up and I just realized... I think I'm a victim of originality theft.
Overdiction by boredandhassled July 11, 2009

overacting

anyone who does too much to prove they hard
these overacting niggaz wont bust a grape in a food fight
overacting by KuttBoYY February 2, 2009

overgifting 

Giving an excessive amount of presents to someone, to the extent that they feel uncomfortable receiving them. (See also "deafgifting.")
When Ted and Mary came for dinner, they brought wine, flowers, candy, a crystal bowl, strawberries and a set of coasters. We had simply requested a bottle of wine, so their overgifting made us feel somewhat overwhelmed.
overgifting by Cabot Wonder January 5, 2010

Overyacting 

When a man gets his panties in a wad an overreacts.
Carl your always overyacting, take a minute and think before you call me a liar next time and I won't overyact and purge your ass.
Overyacting by Sir Howeird FVV November 1, 2009
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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