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Himalayan Pinstripe 

When having vaginal sex in the doggy style position, the guy inserts his index finger into her asshole, removing a globule of shit. When she turs around to ask what the fuck he thinks he is doing, he attempts to paint a line from the closest side of her face down the length of her body. Extra points if he makes it to her ankle before she presses charges.
Bro 1: Dude, you and Krista are still down for that 5fdp show Friday, right?

Bro 2: Nah. I gave her the old Himalayan Pinstripe the other day, so we are done, I am broke from posting bail, and the judge said I couldn't leave the county...

Arizona Pinstripe

These are horizontal scratches that run from the front fender to the rear quarter panel. These scratches are frequent when off-roading in the Arizona Desert.
When I was driving down a dry wash, I got Arizona Pinstripes when I got too close to the bushes.
Arizona Pinstripe by "Big" Chris October 5, 2006

pinstabating 

When you recently get talking to a super hot chick on blackberry pin and you decide to masturbate, could be after receiving some invited messages or even a pic
Dude "i got this hot girls blackberry pin last night, couldn't wait to reserve any filth from her so i jerked off over her profile pic, some serious pinstabating"
pinstabating by JRF17 December 5, 2010
A person who becomes so good at games of all types that others stop playing games with them altogether.
"Wanna come over for some Goldeneye?"
"Sure..but not if you invite Jonathan...he's a total pwnstar."
pwnstar by yanados October 5, 2006

Redneck Pinstriping 

When you are dipping and spit out of the window of a moving car.
Those marks on the side of his car were definitely remnants of some redneck pinstriping.

pinstrosity 

2. a Pinterest pin of great and often frightening size, force, or complexity. Pinterest may be more pinstrosity than not - a high percentage anyway. Recipes, sewing, crafting, home decorating, DIY projects - all are subject to posts from the experienced who overestimate the same skills in their followers.
"I am looking for an Easter treat idea that isn't such a pinstrosity."
pinstrosity by northmo March 28, 2013
More from Urban Dictionary
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
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
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