1/3 rule 

The rule of thumb for sexual intercourse , esp. in male homosexual activity , in regards to the size of the giving participants penis.
Whenever the penis is larger then 6 inches, then the receiving participants only agree to receive 1/3 of the phallus of the giving participant.

This rule dose not always apply , as some male homosexual intercourse goes by the 'breath through the pain' rule, and clarification is expected to be communicated prior to the encounter over the interwebz or in eye contact in the nanoseconds before the door closes and penetration occurs .

Kevin Smith was interviewing Malcrom Ingram, as Malcom admitted his dismay upon the idea of accepting a full nine inches of raging man meat. Kevin reminisces of his mothers 'frugality' , gets lost in a haze of 'foggy' memory, then returns to introduce to the SModcast community and the entirety of the internet the 1/3 rule.
Kev, this is for you good sir.

[e-mail]

1/3 rule by eat cock-Oh we totally DO October 16, 2010

Rule 1-3-5 

Always try to occupy odd-numbered urinals. Never occupy a urinal right next to another urinal currently in use. And never, EVER start a conversation with anyone if you are using a urinal and/or if the person you want to talk to is using a urinal. That would just make everything really awkward.

*Guy 1 enters bathroom, occupies urinal*
Guy 1: Hey bro, what's up?
Guy 2: WHOA WHOA WHOA MAN! RULE 1-3-5!
Guy 1: Oh shit, sorry
*Guy 1 moves urinals, pissing commences in silence*

Rule 1-3-5 by anonman123 April 17, 2010

The 3-1-1 rule 

The rule that when out drinking you can easily drink 3 pints before you need your first piss but thereafter it's one pint, one piss for the rest of the evening.

(Also applies to drinking tea if you're British).

"I've gotta go piss dude, the 3-1-1 rule's just kicked in".

The 3-1-1 rule by Woody72 May 27, 2017

1, 3, 5 rule

When using public bathroom, using urinals, 1, 3 and 5. No 2 and 4 just in case others come in. Never be next to another man using a urinal. Also no talking why using the bathroom.

WTF, your in 2!!
So...
1, 3, 5 rule!!!

1, 3, 5 rule by Urban Dictionary January 18, 2008

Rule 13 

Nonsensical, uncited, or otherwise incomplete arguments may be immediately recognized as trolls if the first party immediately responds with "Fucking Google It" when further explanation is requested. It can safely be assumed the first party doesn't know what they're talking about and Rule 14 may be invoked.

P1: Can someone explain to me, without sensationalism, why this bailout is bad for America?

P2: Try going into a convenient store with the money from your monopoly set. Does it work? No. Now, pretend China is the convenient store.

P1: I'm not following your analogy. China actually does take our money. And how does that explain the bailout?

P2: Google it.

P1: Ah. Rule 13. That's what I thought...

Rule 13 by tehInterweb January 20, 2009

Rule 13 

In situations in which a temporary set of rules are necessary, Rule 13 shall always be "No one shall say bad things about another person". In addition to establishing a standard level of civility, it also forces the situation to have a minimum level of structure by requiring at least 12 other rules be created.

Person A: "You're such a tool, Person B."

Person B: "Hey, Rule 13, jackass!"

Person M: "Rule 13 times two..."

Rule 13 by T. S. Hogdahl II September 28, 2009

Rule 13 

Ignore all fears from and referring to the number thirteen.

"Hey, there are thirteen steps on this staircase, you think we should be up here?

"Rule 13"

"Nevermind."

Rule 13 by ReflectionBasin February 23, 2009