Rule of Snow 

The rule of snow is the rule that a pretty girl will always look twice as pretty when it's snowing outside.

Usually only happens when the snow is falling softly, not common in blizzards or other similar conditions.

Person A: I already knew Molly was a gorgeous girl but yesterday it was snowing and when I saw her standing outside she took my breath away!
Person B: Gotta love the Rule of Snow.

Rule of Snow by Grape-Chan February 24, 2013

rudesian 

someone that is rude and asian.

Katze is a rudesian.

rudesian by rbys October 6, 2016

rule 290 

UrbanDictionary's entry is now updated.

Rule 290 of the internet is false.

rule 290 by アルベド November 30, 2016

Rule Nazi

someone who is a nazi about rules

stop being a rule nazi!! !! No one cares if you're not aloud to stop the puck in air hockey.

Rule Nazi by TheGoldenAppler January 4, 2018

ruleecia

The best friend in the world, kind, sweet, and amazing anyone would be lucky to know RuLeecia

RuLeecia is the best, you should get to know her

ruleecia by RuLeecia May 13, 2018

Rule 34 

Rule 34 of the internet. This is the most infamous unwritten rule. It states that any famous object (both physical and non-physical), topic, fandom, or person has a pornographic counterpart.

In other words: "If it exists, there is porn of it."

Person 1: Do you think minecraft porn exists?
Person 2: Remember rule 34? Of course it does!
Person 1: Should I look it up?
Entire Room: NO.

Rule 34 by That_Nerd22 July 24, 2018

Rule 998 

You're allowed to assume if you don't know something

You should not be proud of Your naughty behavior young man.
You assumed they were a young man and not a moderate adult .
Rule 998

Rule 998 by Daniel newsy-housy November 4, 2018