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umfriend 

Noun used to describe someone who you are banging, in the stage before she is your legitimate girlfriend
"Oh Hi guys, I hope you don't mind that I brought my um...friend Ursula to our poker night"
umfriend by Stan July 27, 2004

UMFRIEND 

A sexual relation of dubious standing or a concealed intimate relationship.
"This is Bridget, my...um, friend."
UMFRIEND by Zak May 3, 2003

Umfriend 

Noun; a person with whom one's relationship is ill-defined, illicit or uncertain.
This is Xxxxx. He's my umfriend.
(Not to be confused with "unfriend", verb; to remove a person from one's list of "friends").
Umfriend by Azenath69 December 5, 2021

umfriend 

a euphemism for 'fuckbuddy'
only pussies say umfriend
girl: this is my umfriend Jake
umfriend by jolee February 17, 2009

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

um friend 

A partner in a sexual relationship on an ambiguous standing.
"This is Kate, my, um, friend."
um friend by lysol sammitch May 1, 2005
Word of the Day on July 3, 2019
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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
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