Rule 30

What has been seen cannot be unseen.

"Rule 34 on that"

'Just remember Rule 30. You may not like what I have.'

Rule 30 by Mikums August 15, 2008

Rule 30

The rule stating that there are no girls on the internet.

*Girl posts picture.*
Not real! Rule 30!

Rule 30 by awesome9 November 5, 2011

Rule 30

Rule 30 : TITS or GTFO - the choice is yours.

Usually used on board websites, when a girl posts a picture of herself she has to options they are post a picture of her tits with a time stamp or gtfo.
Simple

How rule 30 works:
*girl post picture of herself*
Anon: Tits or GTFO

Rule 30 by Bossac1234 December 2, 2010

Rule 30

Rule 30 states if there is milf near you, you no longer have the flu.

Boy 1: Hey, I’m going to this milf
Boy 2: Don’t you have the flu?
Boy 1: Rule 30 man
Boy 2: Oh your’e right

Rule 30 by Mike Oclonng December 29, 2021

15-15-30 rule 

15-15-30
15 minutes eating ass
15 minutes licking clit
30 minutes fucking

A: sex with my girl has gotten boring
B: you should try the 15-15-30 rule

15-15-30 rule by Skittlesnacker March 27, 2022

30/30 Rule 

If you can last 30 minutes in bed and can run for 30 seconds it is safe to fuck a crazy chick.

"you're gonna fuck Stacey"

"don't worry I fit the 30/30 rule"

30/30 Rule by Angrovar June 19, 2018

10:30 rule 

When snapping past 10:30 it has to be a booty pic

10:30 rule tonight females!!

10:30 rule by puckin May 1, 2021