rule 3a 

Rule 3: Don't stick your dick in crazy. Adendum:Don't let crazy stick his dick in you!

You said you were done with the bunny-boiler, but you went and violated Rule 3a! You let him slip you teh cawk! Now you'll never get rid of him!

rule 3a by Blabberwolf January 1, 2009

Rule 71

Zombies always win. no exceptions

Guy1: dude i bet i can beat the zombies on infection on reach.
Guy2: Rule 71
Guy1: Ha. Watch me brake the rule
*after 5 hours of playing infection*
Guy1: dude i've played every map at least 5 times....
Guy2:did you win?
Guy1:no

Rule 71 by Zombies_Win November 24, 2010

Rule 0.5 

A rule of table top gaming. If the DM/GM is being an Ass/dumbass/idiot and/or abusing rule 0, the players can choose to override him by leaving his game and starting their own.
An alternate version involves Smacking the DM over the head with the Dungeon Master's Guide.

DM: The ghoul rolled a 28 On his check to resist your Trip attempt.
Player: How the Hell does a ghoul get a 28?
Dm: With His +8 grapple modifier.
Player: But it is a Strength check, not a grapple!!
DM: I am the DM, Under Rule 0 I say He uses his Grapple Modifier.
This is where Rule 0.5 Is invoked
Every player at table: Smacks DM upside head with books and Leaves game.

Rule 0.5 by Eldrich Thurge January 30, 2009

Rule 1 

The Doctor Lies

River Song: Who told you he was dead?
Amy Pond: He did!
River Song: Rule 1: The Doctor lies.

Rule 1 by Book_Freak November 10, 2011

Rule 19

The more you hate it, the stronger it gets.

Rebecca Black is the epitome of Rule 19.

Rule 19 by flypossums May 23, 2011

Rule 41

An internet rule popularized via motivational poster that states that something needs more desu, no exceptions.

Person A: We need more pizza, desu.
Person B: What?
Person C: Rule 41.

Rule 41 by Kagi Omiya February 2, 2009

Rule 17 

Every win eventually fails

Guy: Halo 2 FTW ^_^

Guy2: Halo 3 is out now. Rule 17

Rule 17 by pseudonimph February 5, 2009