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A man who is single, and has expressed intentions of meeting a woman who has particular traits, can cite rule 4. This rule means his friends must greenlight an introduction between the two if said friends mention this desirable babe. see examples.
Friend:"So, Jim's girlfriend has this nice blond roommate and-"
single male seeking blond:"Rule 4."
Friend:"Shit... Talk to Jim about it, maybe you can meet her."

Friend:"So, this chick rear-ended me today-"
Dude:"OMG, I love Asians!!! Rule 4"
Friend:"Here's her insurance information."
rule 4 by SingleGuy4956187597492 August 6, 2008
Related Words
Only 2 guys to a fight
Brad Pitt: Rule 4; Only 2 guys to a fight.
Rule 4 by thechikinman July 9, 2020
Always use google traduction when you find something that might be interesting in an other language
Guy 1 : Hey, I found this French article about a new cool game
Guy 2 : Well i'm going to use rule 4
Rule 4 by Hidden person lol November 11, 2022
a reminder that we do not like to look at sex toys particularly those featuring characters from despicable me I, II, or III, or any knock off, please euthanize me
hey uh wanna see this minion themed...

RULE 4.
rule 4 by barandgrille July 24, 2021
If there is a rule with specific credentials in it, such as a decimal point or negative sign, that rule is it's own rule, regardless of what rule -2 says.
Man: I found a rule 1.5, but I cant use in because of rule -2
Other man: rule -4. Yes you can.
Rule -4 by Sonicwave.exe May 18, 2021

rule 4/1 

4/1 - April's first.
No one in the entire internet can be trusted, especially on 4/1.
*on 4/1*
Guy1: ¡Oh my god , Half life 3 is coming out and Facebook buys Linux!

Guy2: Rule 4/1.
rule 4/1 by Fasox April 23, 2014
More from Urban Dictionary

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
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