21 rule 

When playing madden and others are waiting. if one player scores 21 points before the other can even score 1, they must forfiet the game. 21 rule is used when players are too cheap to buy a multi tap.

red: i got next, yall playing 21 rule right?

john: 21 nothing biatch, pass the sticks loser
peanut: damn i gotta stop picking the lions, they suck.

21 rule by Jpleseme October 7, 2006

21 Point Rule 

This is a mercy rule used in Madden, NCAA football and basketball games. If either player gains a lead of 21 or more points the game is ended with the player leading declared the winner. The rule was created to allow people with downs the chance to get on the sticks faster. It also prevents embarrassing blow outs.

21 point rule is the Madden Mercy rule

21 Point Rule by Cole Lillie December 16, 2008

Rule 21 

the rule that all numbers pertaining to a rule are completely and utterly random.

1: So then i applied rule 21-
2: Dude there is no such thing as rule 21, i think you mean rule 22.
1: Its not like it matters at all...

Rule 21 by Fness January 17, 2008

21 skunk rule 

This rule applies to sports games like madden or NBA 2K
When your playing against an opponent

When one side goes up by a margin of 21 points or higher the losing side must forfeit to prevent the wasting of time

Lebron for three...... Yes! 21 skunk rule Give it up you lose

21 skunk rule by Mboiii September 14, 2016

rule 21 

Dont eat out a girl that had a abortion, because that pussy is haunted

Did you hear about rule 21

rule 21 by THECOOLESTGUY1472 February 16, 2018

21 Day Rule

After a movie has been released for 3 weeks (21 days) everyone who has seen said movie has liberty to discuss said movie without fear of being bashed for spoilers.

Guy 1: Bruh! You spoiled the movie! I ain't seen it yet
Guy 2: 21 Day Rule bro, you had time to see it

21 Day Rule by Toniiiii March 11, 2017

Rule 21 

When you scoop your ballsack for ur friends to see. N they have to look at it.

hey guys rule 21 *bounces penis up and down*

Rule 21 by rule maker😈 May 18, 2022