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10% Rule 

One must be ten percent smarter than the object/task one is attempting to use/accomplish.

For instance, pushing a pull door or failing at some other seemingly simple task.
Friend 1: Did I hear correctly that your girlfriend got locked in her own car?

Friend 2: Yeah. 10% rule, dude.
10% Rule by PeteWine February 9, 2009
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The 10% Rule 

When two friends of opposite sexes are simply friends and not fuck buddies or whatever people fantasize about in their twisted heads.
Dude, my friend and I are definitely not following the 10% rule. We have sex like every other day.
The 10% Rule by the10% October 23, 2012

the 4/10 rule of homosexuality 

if something is .4 (4/10) gay, or less, it is NOT gay because you round .4 to 0.

if something is .5 (5/10) or more, it IS gay, because you round up to 1.

some things that are .5 gay or more:
kissing with tongue

eating ass (while both men are naked. if only one is naked, it is 4/10 gay)
completely nude anal (10/10 gay)

.4 gay and lower:

kissing with no tongue

ass slaps

unintentional dick on dick contact

ALL THINGS THAT ARE DEEMED GAY MAY BE SANCTIONED TO 0 ON THE GAYNESS SCALE BY SAYING, “no homo” AfTER THE GAY ACT
boy 1: “i ate his ass, is that gay?”
boy 2: “were you both naked?”
1: “yes. why?”
2: “yeah it’s gay, it’s 7/10 gay so you round to 1”
1: “oh shit! i forgot about the 4/10 rule of homosexuality”

14-10 Rule 

When a seemingly incompatible couple is married quickly, then subsequently announce that they are 14 weeks pregnant only 10 weeks after the wedding night.
“Did you hear about Jane and John?”
“The 14-10 Rule, many such cases”
14-10 Rule by Nicholas Cage I March 22, 2021

5 to 10 rule 

The rule to limit the number of curse words and insults you can use while playing a video game, such as Halo 3.
5 curse words to 10 insults or 5c=10i. So 2c=i.
This means if in one game of somthing you insult somone 10 times you can no longer insult or curse at them. Exception: If you use a combonation of insults and curses and it is 2 curses and 5 insults AND you are winning the game then TWO additional insults or ONE additional curse may be used, this is referred to as the PWNAGE exeption.
1.
Guy 1: And your mom is a...
Guy 2: STOP! You already cursed 3 times and insulted people 4 times! Don't break the 5 to 10 rule!
2.
Guy 1: You Ba...
Guy 2:NO! You alredy cursed 2 times and insulted people 5 times! Don't break the 5 to 10 rule!
Guy 1: But I am winning, so I can curse again due to the PWNAGE exeption.
5 to 10 rule by NOBOYMBOYDBOYSCNNB December 11, 2007
2 feet under you, 10 toes down. To keep ones energy grounded and their spirit devoted.
“When I feel down I remember the 2:10 rule to lift my chin.”
2:10 rule by pinkjellybean October 3, 2022

10-10-10 rule 

A rule to tell your friends so that they don’t walk home when it’s unsafe. If it’s after 10pm, it’s more than a 10 minute walk, and you’re looking like a 10 (which you ALWAYS are), then you get an Uber.

Especially for big city girls and gays, but also country boys and everywhere in between.
She told me she could walk home at 1am, but it’s a 20 minute walk, so she called an Uber. She followed the 10-10-10 rule, so we didn’t have to fight about it like we always do!
10-10-10 rule by DrunkandSafeCelena February 1, 2024
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

pajama casual 

Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.
pajama casual by jrod-knows March 31, 2020
Word of the Day on October 14, 2026

funflation 

The recent boom in consumer spending on entertainment and experiences with a high demand running up the cost of enjoying of those experiences.
I’m trying to go to this Taylor Swift concert but the funflation has made it so impossible for me to afford tickets.
funflation by Dfree523 November 17, 2023
Word of the Day on October 13, 2026
A US deep south term for an alligator. Usually used in the Cajun dialect.
Take the big pirogue, I saw a huge swamp dog out there earlier.
swamp dog by Crystal Ambrose May 22, 2006
Word of the Day on October 12, 2026
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