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Philly Special 

The act of a woman defecating in a man's mouth.
"I'm into some real kinky stuff. Acid-wash jeans, strap-ons, and an occasional Philly Special if the mood strikes me."
Philly Special by McBackup February 20, 2018

Southwest Philly Floater

A shot in basketball where a smaller offensive player floats the basketball over taller defenders who swat helplessly at air attempting to block it. Also known as a teardrop or floater, the term was coined by La Salle guard Tyrone Garland, who honed the craft of this shot as a youth on the rugged streets of Southwest Philly. He ended Ole Miss's Sweet Sixteen dreams by dropping the SW Philly Floater on them for a game winner in the 2013 NCAA Basketball Tournament, making him an instant Philly hoops legend.
OH SNAP! LA SALLE JUST MADE THE SWEET 16! TY GARLAND DROPPED THE SOUTHWEST PHILLY FLOATER ON 'EM! MARSHALL HENDERSON AIN'T GOT S$*% ON US!!

philly cheesesteak challenge 

A competition by mainly high school students in the Washington D.C. area. The challenge is to leave your school in the beginning of the school day, drive to Philadelphia, buy a philly cheesesteak, and make it back to your high school by the time school ends. You then must present the philly cheesesteak as proof that you successfully completed the challenge and a photo of yourself in Philadelphia buying the cheesesteak as well.
Tom: Hey Ben I'm skipping out first period tomorrow you wanna come?
Ben: What are you doing?
Tom: The Philly cheesesteak challenge
Ben: Sweet I'm in

Philly Toxic Waste 

Putting a Philadelphia cheesesteak inside your partners vagina and then putting in cheese wiz. You then proceed to mix your dick. It provided a nice stew you feast on afterward.
I totally gave her a Philly Toxic Waste.
Philly Toxic Waste by 69coolkids November 30, 2017

Philly Nice 

The term of endearment for Philadelphians' bluntness and perceived rudeness. We're not trying to be mean, it just comes off that way, because we care more about telling it how it is than beating around the bush. This isn't the South, just say what you mean the first time around and move on.
"Why did that cashier have to be so rude?"
"She wasn't rude, she was just being 'Philly Nice.' It's not her fault you can't count money."
Philly Nice by carcomptoy July 5, 2018
A funny wee girl who is suuuuuuper silly. Pilly's are usually quite cute.

Beware, pilly's can be pesky.
Haha Pilly, y u so silly?

Piiilly piiiiillllyyyy want piiiiiiiiiizzaa
Pilly by Jamal3333 May 21, 2013
More from Urban Dictionary
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

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
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