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The UNfriend-zone 

It is when your friend finds a new piece of ass/interest and you soon find yourself becoming nonexistent to them. Its more common between a male and female friendship then a same sex friendships.
Megan: "Hey have you noticed since Brad started talking to Kelly he stopped talking to me."
Steve: "Sorry to say this but no matter how you look at it you are in The UNfriend-zone."
The UNfriend-zone by Dat Vern August 17, 2012

Preemptive unfriending 

When one deletes a friend from Facebook because he or she knows that the Facebook friend in question would eventually delete them instead. Preemptive unfriending thus robs the deleted Facebook friend of the joy of being able to delete them.
John: Why'd you delete Bec from you friend list?
Adam: I knew she'd eventually delete me so I wanted to take the satisfaction of unfriending for myself.
John: Ah, a preemptive unfriending.
Word of the Day on March 25, 2018

eco unfriendly 

a person or object that is extremely against saving the world
chainsaws are very eco unfriendly
eco unfriendly by ___^^))__ April 28, 2008
The act of removing a friend from your facebook account.

Compulsive people prune their friend list periodically, removing people that they no longer have contact with. More often though, unfriending is only done when a particular friend's updates and self-promotions become so annoying that you can no longer stand hearing about them. Or you might unfriend someone when they piss you off, however, this is not very effective since the person who is unfriended is not notified that you unfriended them and you'd be better off to keep them as a friend and plot your revenge.
Dude, did you fucking unfriend me on facebook? I was looking for your email address and you're not in my friend list anymore. WTF?
Unfriend by maktar June 13, 2008
Means bothersome/quarrelsome in German. Also happens to be the fucking coolest last name a motherfucker will ever hear.
You're being mad unfried today. Don't talk that shit to Chase Unfried though he'll fuck you up so bad you'll piss through a straw.
Unfried by DPSisBad October 18, 2013

umfriend 

a person with whom you are in a physical, but not necessarily romantic, relationship

also uhm-friend, uhmfriend, um-friend
"Oh...Hi mom, this is Steve my um...friend"
umfriend by mr.tickles August 22, 2005
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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