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Pronunciation: /foʊ'li:/
Definition:
1. A leaf (folie) from a plant or tree (arbore).
2. Specifically refers to verdant foliage.
3. Collectively describes multiple leaves.
4. Symbolizes renewal, advancement, and seasons.

Significance:
• It defines foliage in a simple, accessible manner.
• It emphasizes ecological relevance and seasonal cycles.
• It identifies key parts of plants and trees (arbores).
• It avoids overly technical, homophone or botanical jargon.
• It simplifies descriptions of floral arrangements.
• It improves clarity in gardening or biological contexts.
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms, similar to "leaf."
Singular noun: folie
Plural noun: folies
Examples:
• "Autumn folies turn aureate before falling."
• "Botanists study folies to identify plant species."
• "Flowers flourish amidst verdant folies."
• "Chefs garnish salads with (cone) delicate folies."
• "Arborists trim excess folies for optimal advancement."
folie by Dmitrio January 30, 2026

Folie a deux 

Used with humor, as a simple statement, in a conversation when you strongly disagree with the majority. Originally a French term used in psychiatry to describe a mental disorder in which two or more associated persons share the same delusion. In other words, you are saying "The two of you share the same delusion." Translated "madness between two."
Two others state "G. Dub is an excellent public speaker." In your disagreement, you respond with "Folie a deux!"
Folie a deux by Michael Moyer August 12, 2006

Folie à Religieux 

The Gay Agenda, only French.
"He's suffering from Folie à Religieux, I blame Fox News!"

Folie à Deux

Yeah, you know, I wasn't going to say anything but (since you brought it up) it's a little pretentious innit? Not that I'm not pretentious but...
Hym "God, don't even get me start on the French... Folie à Deux? I bet the first scene is Arthur buying a prop-revolver that shoots out a flag thay says 'Bang' Ha!"

Iam "Oooooh! It's a 'Folly of psychology' reference. Right? Remember that one? That's a pretty old one. I'm surprised he remembers that one."

Hym "Oooooohhhh.... Still pretentious just... It's me... I'm having a hard time not feeling slighted by that...." 😑
Folie à Deux by Hym Iam March 28, 2023

folie à deux

French for "madness for two" - The 4th studio album released by Fall Out Boy
have you listened to folie à deux? it's a great album
folie à deux by imnotaghostyouare February 26, 2022
More from Urban Dictionary

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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