Unzin 

German slang for the space between the penis and anus of carpet layers and vinyl layers

Damm I have poop on my unzin

Unzin by Rubberdonk May 10, 2022

Showing up uninvited 

in internet parlance, meant to convey the appearance of an unwanted or undesirable group of people that you weren't seeking out in the first place.

There was an interesting discussion about how to save up for retirement, but then all these bitcoin bros started showing up uninvited.

Showing up uninvited by JuliusCesarus July 11, 2021

Uninut 

A man with only one testicle.

Synonyms: Uni-ball, oddball, pansy, one nut,

Why do you guys always refer to Gregg as uninut? Oh, because his wife told us he only has one testicle. He's a real oddball.

Uninut by SwiftyDefines February 26, 2015

unfindoutable 

Incapable of being found out about; impossible to find out.

So Yesterday, my nephew decided to tell a secret to my grandparents, and I could not hear it, and they refused to tell me the information. It is now unfindoutable

unfindoutable by Qwickable March 27, 2019

uninanonynymity 

the act of being the soul of discretion with the confidence of said friendship; not snitching your friend out when threats ensue.

Hank: "I'm here to save your life. But if I'm gonna do that, I'll need total uninanonynymity."

uninanonynymity by Charlie Nrocinu December 27, 2011

rage uninstall

When a person/deletes or uninstalls a game from their computer out of rage at the game.

Bob: Why isnt johnny playing Burnout with us?

Steven: He rage uninstalled when he couldnt beat a race in carrer mode.

rage uninstall by ANGRYUNIBROW November 19, 2011

undinist 

1. A man aroused by water.
2. A man who likes to urinate on ladies.

"He did not use a fountain pen which fact, as any psychoanalyst will tell you, meant that the patient was a repressed undinist." -from Lolita, Vladimir Nabokov

undinist by queebuck July 23, 2008