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Trefting 

Verb: To Treft
to creep; to learn as many names as possible by studying yearbooks and call everyone by their name, even if you don't know them.
Some lady just called me by name, guess she was trefting.

Hey, you trefting?
Trefting by trefter May 9, 2011

Theftinition 

n. - a plagiarized (and in some cases slightly modified) definition of an original slang word.

See lol theory, definition 2, or theftinition, rather.
Dude! That guy who made the theftinition for the lol theory is a punk ass bitch! I'ma shank his ass.
Theftinition by Up4Ownage January 25, 2010

threfting 

The same as thrifting, except that you steal the thrift-store merchandise instead of actually paying for it. 'Threfting' is a portmanteau word combining 'thrifting' and 'theft'.
Me and Adam went threfting the other day. We walked out in completely different clothes than what we walked in wearing and no one even noticed!
threfting by Jeema June 29, 2006
The act of sending text messages on your mobile phone while walking closely behind a stranger so you don't get hit by a car (since you're not looking up).

Origins: "Texting" and "Drafting" (like race cars)
Dude, I was tefting this afternoon on my way home from work and the guy in front of me suddenly stopped so I totally ran into him.
tefting by Gary Mack June 24, 2008

Thiefting 

Shoplifting from thrift stores. A portmanteau of "Thieving" and "Thrifting"
Badwill Thrift overprices their clothes, so I went thiefting and just put them on in the dressing room and walked out.
Thiefting by Juju Banton November 15, 2022
More from Urban Dictionary
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
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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