Rule 10

Rule 10 refers to 'Rule 10' in the Super Smash Bros. Ultimate Ireland server, stating
"Rule 10, No Violent or Self-Harm Speech.

We strictly prohibit any form of violent or self-harm speech directed towards others. This includes advocating violence, using hateful language, violent abbreviations, or making threats. Any such speech will result in immediate action. Let's foster a respectful and welcoming environment for all members."

As a means to avoid time-out, 'Rule 10' is used as a substitute to the word 'kill' in the phrases 'kill yourself' or 'i am going to kill myself'.

I'm going to Rule 10 myself if you lose to Pascal

by ZARDKINGMEGACHAD September 2, 2023

Rule 31.5

The opposite of rule 63. Used for art that depicts a character with their cannon gender. Created to help people find art of the character's original gender.

Person 1: Bro, I can only find genderswap art of this character!
Person 2: Try searching with the Rule 31.5 tag!

by Rule63Police July 30, 2024

Rule34.com

The worst, wretched places and worst places on the internet to find hentai with either anything being shit drawn of mspaint, deviantart fetishes taken to it's next level, or just butt-ugly art style with only thing good being the AI art that comes from it. If it exists there's porn of it, even for the most terrible, degenerate looking art out there.

He saw the terrible fetish art on depths of Rule34.com, now he's going to bleach his eyes with holy water from seeing it

by Kilroy wasn't here August 22, 2024

Rule 55

British Railways Rule 55 is a rule which persisted in the 19th and 20th century. It says that if a locomotive stops on a mainline, it MUST let the signalman be aware of the presence of the train, to prevent serious accidents. This rule is known to be broken in the Thomas & Friends episode "Henry's Forest", which was criticized by Awdry himself for not following the rule.

Rev. W. Awdry: "Henry's driver didn't obey Rule 55, which means that the driver should've warned the signaller! That's unrealistic!"

by anonymous September 6, 2023

Rule 3

Rule 3 is when someone breaks rule two, you are allowed to attack them

Guy 1: Breaks rule 2
Guy 2: "hey he just mentioned the /b/"
*invokes rule 3 and guy 2 and 3 beat guy 1*

by Touch of the tism September 11, 2023

Rule 13

The rule that managers, school administration, or any body of people in charge of other people in a workplace setting, will mess up every decision they make.

Our boss Ryan tried to organize a staff lunch, but he Rule 13'd it and nobody showed.

by Bigpoppa0035 September 14, 2023

Rule 50

The rule of the internet (like Rule 34, Rule 63, etc.) which dictates that every fictional work will have a crossover with every other one at some point.

Person 1: Would it be funny if Sparklecare x JToH x Mega Man was a thing?
Person 2: Rule 50, man, rule 50.

by an extremely depressed bandu September 17, 2023