Rule 34sf 

If there is fanfic of it, there is slashfic of it. No exceptions.

Bob: I just stumbled across a Halo slashfic, I am traumatised for life.
John: Rule 34sf man.

Rule 34sf by JoeChief June 21, 2010

Rule lol 

On the internet, lol can be placed any and everywhere in a sentence and the sentence will still make sense.

Example of Rule lol
A: Hey lol
B: lol hey
A: lol how you doing lol
B: I'm doing good lol. Lol how bout you lol?
A: lol i'm doing good too lol.

Rule lol by ODST September 4, 2009

rule 5 

At some point every conversation of over an hour will involve your mom in some way shape or form

x001x: I propose this conversation will soon go to rule 5. You know why?
Loli: Your mom

rule 5 by darkerblade March 15, 2008

Rule 34A

The addendum to Rule 34 of the internet, stating that all cases of invoking Rule 34 are valid except upon Rule 34 itself. Therefore, according to this rule, there is or will be a porn of everything on the internet, except a porn of Rule 34 itself.

Requesting Rule 34 of Rule 34!

Answer: Rule 34a. Denied.

Rule 34A by Justin Jantzen March 7, 2008

Rule Number One 

In the rules for life, the first one is always this: Don't Get Caught. Other rules may vary by location and other factors, but especially in college when numerous activities of questionable legality are occurring rule number one is don't get caught.

Rule number two is frequently Don't Die, unless not dying would interfere with rule number one.

Jason: Put that pipe away while we're driving through the speed trap, I don't want the cops to see and pull us over.
Sarah: Gotcha, following rule number one.

or, on the outside end of a phone call from jail:

Jason: You broke rule number one!

Rule Number One by StoleTheCookies September 26, 2009

Rule 2 

Do not talk about fight club

In the movie "Fight Club" Brad Pitts charactor says "rule 1: Don't talk about fight club. RULE 2: Don't talk about fight club".

Rule 2 by Lief fkdjsfoe May 19, 2008

Rule of Rabinowitz 

The people-rule that when a person brings up a subject during a conversation, that person is obligated to share the story or subject in question.

Sally: Did you hear who got fired?
Joe: No, which teacher?
Sally: I really am not allowed to say...
Joe: Rule of Rabinowitz, you got no choice.
Sally: Aiight, it was Ms. Fish

Rule of Rabinowitz by Elmer Smith January 18, 2008