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Rule 100 of the internet 

Gay will not be tolerated.
Bruce Jenner: Look I'm a girl because feelings > facts
Our Lord and Savior Ben Shapiro: Rule 100 of the internet libtard
Rule 100 of the internet by Honkler November 30, 2018

The 50-50-100 Rule 

An even more hyperbolic variant of The 50-50-90 Rule. In a situation where a subject has a 50/50 percent chance of getting something right, they will get it wrong 100% of the time.

This "rule" was popularized within the Super Mario Maker troll level community by popular Twitch streamer CarlSagan42, and is just one example of a reoccurring joke designed to showcase how easy it is to fool the average player into doing something wrong.
Player: *decides to collect a powerup which the level kills them for in the next room* "It's LITERALLY The 50-50-100 Rule. This happens EVERY time!"
The 50-50-100 Rule by GNFZ April 6, 2021

90 10 100 Rule 

The rule which states that...

90% of the time a person is no more than 10km from their home, and 100m from their car
I couldn't find you anyware, you broke the 90 10 100 Rule.

Rule of 100 

The total measurement of Bust + Waist + Hips
34D-24-34 = Rule of 100
Add the bust plus the waist and the hips to equal 100 (ideal)
Rule of 100 by schmoo248 March 29, 2010

90 10 100 rule 

The rule which states...

90% of the time a person is no more than 10km from their home and 100m from their car.
Where were you, you like, brojt the 90 10 100 rule.
90 10 100 rule by Nards_Otc October 26, 2007

100 day rule 

The 100 day rule states that after a 100 day snap streak on snapchat, both recipients must send nudes to one another. If this is not done, then it is punishable by death
'Mate, you better follow the 100 day rule'
100 day rule by MCLukeyboi May 3, 2016
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

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
Word of the Day on October 2, 2026
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