Elf shoes are pieces of leftover pizza that are at least a few days old. Defined by the “curl” at the point of the pizza slice, looking like an elf shoe. Typically, elf shoes happen because leftover pizza wasn’t refrigerated. While its not safe to consume pizza that’s been left out for more than a few hours, we’re all guilty of leaving the pizza box out for a few days, slowly chipping away at the leftover elf shoes.

“Hey, bro. You wanna help me finish this box of elf shoes? “

“I should have known that those elf shoes would make me feel like crap!”

Elf Shoes by MisterHollie December 27, 2021

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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

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Bunhead

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

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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.

trucker's tan by population361 May 30, 2006

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kidulting

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

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Boffin

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

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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

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