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simultaneous trumpfinger 

A now popular occurrence describing the phenomenon of a group of people flipping an emphatic bird at the same moment, often at the mere sound of 45’s voice.
Simultaneous trumpfinger, while watching the news, has become a family bonding experience in our household.

simultaneous equation 

equations involving two or more unknowns that are to have the same values in each equation.
If an equation has two unknowns, such as 2y + x = 20, it cannot have unique solutions. Two unknowns require two equations which are solved at the same time (simultaneously) − but even then two equations involving two unknowns do not always give unique solutions.
This gives us a 'simultaneous equation'
simultaneous equation by rieazen September 9, 2014

simultaneous snoregasm 

Profoundly peaceful sleep shared by a couple after lovemaking.
Feeling what he knew would be her final orgasm of the night, he joined her, in perfect sync, and they fell into a state of simultaneous snoregasm, neither of them stirring until sunrise.

Simultaneous release 

when one concurrently urinates and defecates; referenced in the song "Dani California"
I would sure rest in peace after a simultaneous release.
Simultaneous release by prague1 June 30, 2006

Simultaneous Zisk 

When you and your friend notice an attractive person at the same time and therefore must battle over who gets to introduce them self first. Usually occurs at party, bar, or similar scene where you are trying to pick up a babe (male or female).

Rules of Simultaneous Zisk:

1) When you both see the hottie, make eye contact with the other and yell "Zisk!" at each other. This initiates the game.

2) First person to smack the nearest door hinge wins.

3) Winner gets ten minutes to engage the hottie with no interruptions. Loser may intervene if after the ten minutes the hottie seems uninterested.
"Why are you standing so close the door? You're kind of in the way."

"Sorry I'm expecting Betty and I have to have a good position for Simultaneous Zisk. I just know Jordan is going to try an say he say her first."
Simultaneous Zisk by lalaking January 20, 2015

simultaneous ambidextoral coordination 

The act of simultaneously wiping each of one's dual buttholes with each hand, separately, at the same time.
This occurs when one has dual dirty buttholes, two hands, and two pieces of toilet paper (preferably clean) and uses one hand to wipe each of the dirty buttholes (one hand per hole, NO SWITCHING!); one hand wiping in a circular motion, the other in straight lines (front to back or side to side, not both), thus achieving simultaneous ambidextoral coordination.
More from Urban Dictionary

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
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
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