Rule 201 

No matter how much you shake, it will always dribble.

In the men's toilet, rule 201 always apply's

Rule 201 by RC_1827 July 27, 2011

Rule 201 

DO NOT SAY (that certain Shakespeare tragedy)

Friend:Hey man have you seen like Macbeth
Me: Dude wtf rule 201

Rule 201 by Not me I think July 4, 2020

Rule 201X 

If it exists, there is a Megalovania of it.

Alternative Name: Rule 100 (Megalovania is the 100th song in the Undertale OST)
Origin: A parody of Rule 34 (If it exists, there is porn of it.). 201X is the year that the events of Undertale take place.

1: Hey, do you know if there are any Power Rangers Megalovanias out there?
2: Rule 201X.

Rule 201X by Shugunou February 10, 2022