rule of 7 

cut your age in half then add 7, that is how young you can go to hook up with someone

bob:yo you see that girl?
joe:yea but she aint in my rule of 7, she too young
bob:huh
Joe:I'm 20 half that is 10 add 7 thats 17 she only 16, thats a no go

rule of 7 by bobdoleca01 September 26, 2013

rule 121 

Rule 121: If it's a chat site, people will fuck on it.
Rule 121a: If it's a chat site and people haven't fucked on it, they will, no exceptions.

Hey dude, I just went on Chatango and it was nothing but people cybering.
Dude, rule 121.

rule 121 by The Internet Rule Legislators September 26, 2018

Rule 11 

Rule 11 applies if a word isn't defined yet in the Urban Dictionary.

Rule 11 wasn't defined yet when it was first searched for.

Rule 11 by Rule Searcher January 5, 2009

Rule 323482387

If you found *anything* and you proclaim what you found you must explain/talk about what you found/did to find etc.

Guy1: Yooo I just found Rule 323482387
Guy2: HOW?
Guy1: I'm not telling!
Guy2: I cite Rule 323482387
Guy1: SHIT

Rule 323482387 by Fracking897 May 23, 2018

Rule of straws 

When playing "seven, eleven or doubles" one cannot start rolling the dice until the person touches or has mouth on the straw in their drink.

Rule of straws is if Lauren rolled a seven she cannot start to roll the dice until Courtney touches or starts to drink from the straw in her cup.

Rule of straws by Drinkmaster95 November 15, 2013

rule 1801 

Generally accepted Internet Rule that you cannot wank off an Eskimo on a Wednesday

Person 1 (On Wednesday) : I really want to wank off an Eskimo

Person 2 : Rule 1801 bitch

rule 1801 by HerpDerpMassive January 20, 2015

rule 889

No matter how many rules exist, more can be created.

Guy 1: Man, there is no possible way anyone could think of another rule.

Guy 2: "Rule 889"

Guy 1: Oh yeah...

rule 889 by Pixel Studios May 30, 2017