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e-fenestration 

Accidentally alt-tabbing to an equally inappropriate window when your boss/parent suddenly appears.
Man, I had like...15 windows open on my PC at work today and only one of them was the report I was meant to be working on. Clicked from Facebook straight to YouTube when my boss appeared. Just a big-arse kitten playing a piano on my screen. Complete e-fenestration.
e-fenestration by Tommy G (Syd) November 5, 2009

The Fenestration Paradox 

The burning need (whilst stoned) to both lie down, get up and eat something, drinking something and play more Mario. This creates the ultimate paradox in that you can never be doing what you want to, despite attempting to do what you need constantly.
"I'm stuck in the Fenestration Paradox man."
The Fenestration Paradox by Zeddecus November 23, 2005

Mobile Oral Fenestration 

Giving/receiving head though the window of two vehicles that are side by side as they are driving down the road. Done in vehicles like school buses or vans.
Paul took out his dick and the jot girl in the bus next to us started giving him mobile oral fenestration.

Penestration 

To become frustrated from the inability to penetrate or be penetrated sexually.
Despite copius amounts of lubricant, Carl's fat, girthy cock was simply to big to cram into Dana's tight bung hole. After an hour of trying, they both gave up feeling nothing but penestration.
Penestration by Eaton Holgoode November 18, 2015

Funstration 

The act of something being fun and frustrating at the same time.
Getting the 200 flying rats in Grand theft auto 4 is a big pile of funstration.
Funstration by Metalhead92893 May 31, 2010

festration 

The nostalgic longing to be at or on one's way to a music festival, preferably one far away from the responsibilities, stress, angst and conflict of the straight world. This feeling may be simultaneously eased and provoked by consuming festival recap videos, DJ sets, scouring set lists and/or by planning for your next festival.
I'm feeling an acute sense of festration right now! I'm so festrated!
festration by Martinkingsley44 November 13, 2016
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
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
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