Rule 0

The most basic rule of the internet: Don't fuck with cats.

Due to the internet being built on the backs of cat videos and pictures, the internet will track down anyone seen abusing a cat.

He broke rule 0, his location will get doxxed soon enough.

by Losercat December 12, 2024

Rule -8

If you ask nicely, I will draw it.

Rule -8 is so cool

by Boredom Central December 16, 2024

Rule 34 Account

Only exists to make funny comments or to poke fun at kinky people who like futanari or gooners who always end their message with "~"

*insert that one meme with the kid crying cuz he cant make a rule 34 account*
Why does bro need to beat his meat his this bad bruh 💀

by ConnorBroski January 4, 2025

Rule 34

A song by fish in a birdcage that handles a healthy bdsm between two people.

Ay bro did you hear the new rule 34 just dropped.

by Jorkin it master January 14, 2025

Rule 251

If it exists, Fortnite has probably turned it into a skin.

Guy 1: Wait, even a hotdog can be a Fortnite skin now?!

Guy 2: Rule 251, my friend. If it exists, it’s fair game.

Guy 1: No wonder the game's dying.

by Light Guy January 25, 2026

Rule Madoka

A strange tag on Rule34 that's almost entirely populated by the user Xaiet. It completely consists of Madoka being put in crossover related hentai that mainly involves Yuri and Futanari. Sometimes femboys/traps. As of posting this, it has 301 posts but randomly goes down for some reason. I really don't know why this tag exists but I guess good on them for reviving the Madoka Magica tag in some unique way.

Rule 34 user: What the HELL is with all these Madoka posts in the Yuri Crossover tag?!

Another Rule 34 user: It's Xaiet, they keep posting it to the Rule Madoka tag.

by medgear January 26, 2026

Rule 35

“If no porn is found of it, it will be made". This acts as a corollary to the more famous Rule 34 ("If it exists, there is porn of it"), implying that any missing content will eventually be created by users.

Overlaps with Rule 36: ‘There will always be more fucked up shit than what you just saw’, and potentially Rule 63: ‘For every given male character, there is a female version of that character and vice versa’ but not always

Person 1: Finally, I’ve found something Rule 34 doesn’t apply to!
Person 2: Not according to Rule 35, you didn’t

by EnglishMakesMeWantToDrink February 25, 2026