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Something that is as different as possible from something else.
Billy: Your mother straight
Joe: Um ok
Billy: Its opposite day
Joe: fucking end me
Opposite by chiqennugget October 14, 2018
When two things have a resemblance in appearance, character or quantity
“Angry” and “mad” are words with opposite meanings
Opposite by Frederick Yeo November 17, 2023

Opposite Day 

Rooted in playground tradition. A fictional holiday, in which everything you do or say means exactly the opposite. Often used at the end of a sentence to negate what you just said.
"You look nice.... on Opposite Day!"
Opposite Day by Dr. Michael yates January 17, 2005
Word of the Day on July 7, 2005

opposite number

Name: an individual equal in authority, status and capability to ones' self, yet in the employ of a directly rival organization.
After the fall of the Berlin Wall, Agent Smith from the CIA finally met his opposite number in the KGB.
opposite number by speedog June 20, 2010

opposite marriage 

The P.C. way to specify the legal union of a man and a woman, as made popular by Miss California at the 2009 Miss USA pageant.
MISS CALIFORNIA: "We live in a land that you can choose same sex marriage or opposite marriage"
opposite marriage by JusLar April 20, 2009
Word of the Day on April 22, 2009
More from Urban Dictionary

fache-couture 

French slang, which translated, means "bull's fashion" but basically equates to "hyper trendy" or overly trendy. Used when a person wishes to express distaste at the latest fashion trend/fad, because it seems that everyone has a certain item of clothing or is wearing it. This term is most frequently heard in Paris but is slowly spreading to other parts of France.
1. That Burberry scarf is so fache-couture.
2. That purple American Apparel hoodie is so fache-couture.
fache-couture by bkgmh46x0x March 18, 2008
Word of the Day on October 17, 2026
A slang term for GLP-1 medications(like Ozempic, Wegovy, Mounjaro, etc.), usually referring to their appetite-killing, weight-loss, or “I forgot to eat” effects rather than the medical details.

Usage:
* Often casual, ironic, or meme-y
* Can imply effortless weight loss, suppressed hunger, or being “powered by pharmaceuticals”

Notes:
Not a brand name—just shorthand for the whole GLP-1 wave. Frequently shows up in online jokes, gym talk, and group chats where people pretend they’re *totally* doing it naturally.
“I’m not dieting, I’m just on that glippy.”
“Ever since the glippy hit, food feels optional.”
“That summer body? Yeah, glippy assisted.”
Glippy by Wild Stoner Appears December 14, 2025
Word of the Day on October 16, 2026

fauxstalgia 

Faux nostalgia. Faking old things in an attempt to recapture the feeling of times gone past, especially of technology that has passed.
Hipstamatic pictures, just like the vinyl-static added to digital recordings, is prime fauxstalgia
fauxstalgia by scotte61 December 16, 2010
Word of the Day on October 15, 2026
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