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Growing mushrooms 

Used mostly in anime and manga, the term growing mushrooms refers to when a character has become immensely depressed or saddened. The character is often shown to literally grow mushrooms on their body, signifying that their soul is, for the time being, in a dark and dank place. (Mostly occurs with more dramatic and over the top characters who can't stop crying every 2 seconds 😒)
Senpai: (crying because the girl of his dreams thinks he's dramatic and egocentric)
Girl: "Senpai, quit growing mushrooms around me; the smell is absolutely noxious!"
Growing mushrooms by zoy70 June 3, 2018

Dry Mushrooms 

Mushrooms that are in fact not dry but more wet than lake Garda.
Gennaro Contaldo: uh jus gonna puuut dis hAnful of Dry Mushrooms from this bUllful (bowlful) of cold water and leave to dry some more on the side.

Antonio Carluccio: Ah Das wanderfAl Gennaro, be nice in a Risotto one.
Dry Mushrooms by otmazletov February 13, 2013

Fried Mushrooms

One of the best things ever. Good with Steak.
If everyone had Fried Mushrooms, there would be no need for war.

Shiitake Mushrooms 

When you accidently say the word "shit" in front of your parents, teachers, etc. you can just cover it up by saying -ake mushrooms!
*George drops his books*
George: "Shit!"
Teacher: "What did you just say young man?"
George: "You didn't let me finish! I was going to say shiitake mushrooms is what I want for dinner!"
Teacher: "Really? Me too."

Or...
*George drops his books*
George: "Shit--ake mushrooms are yummy!"
Shiitake Mushrooms by Anonymous March 11, 2004

pepperoni and green peppers, mushrooms, olives, chives 

Apparently it's what System of a Down likes on their pizza.
From SOAD's "Chic 'n' Stu"

What a splendid pie,
Pizza-pizza pie,
Every minute, every second,
Buy, buy, buy, buy, buy,
What a splendid pie,
Pizza-pizza pie,
Every minute, every second,
Buy, buy, buy, buy, buy,

pepperoni and green peppers, mushrooms, olives, chives
pepperoni and green peppers, mushrooms, olives, chives

Muffgoose 

It is an adjective that is used to describe anything or anyone that is insanely beastly, bones everything in their path, and doesn't have the word "lose" in their vocabulary. You must have really boned someone to have been called a Muffgoose.
Kid: YO MAN THAT KID IS MUFFGOOSE HE JUST KNOCKED OUT THAT CLOWN!

Kid 2: Yeah he seriously just boned him.
Muffgoose by sneakybuttcheeks123 March 18, 2010
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

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
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