If someone is 1337, lerk3r, or tr0ll, and do not know a mentioned rule "e.g. Rule 34, Rule 2, etc.", they must refer to rule 8, in which the unkownst must flash said boobs.
girl- i just found some noobs
guy-haha rule 6!
girl-what's rule 6?
guy-OH! OH rule 20! flash!
by BobundSteve September 14, 2008
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If you made or done something good it probably already exists or has been done.
you know Rule 20 if you made something good its probably been done
by Exotikian August 27, 2018
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The belief that in a relationship, you'll never get 100% of what you want, so at most you get 80%. But some other person may come along and have that missing 20% you don't have. Some folks fall for the 20% just to realize they should've stayed for their original 80%. C/O Tyler Perry's "Why Did I Get Married?"
"Damn, my co-worker is so HOT and incredibly funny!"
"Think about the 80/20 rule, Becky. Think about it."

"Dawg! She is baaaad...34/22/36. Damn i would so hit that..."
"Whoa man; 80/20 rule dawg. Lisa is a good wife..."
by chiquitaBANANANANAbubu March 9, 2008
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The 86-20 rule states that 86% of all income taxes are paid by the top earning 20% of the taxpayers.
by The Wiz! May 25, 2010
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The principle of this rule is that if it exists, doesn’t exist, or can be conceived by human mind, there will always be someone else offend by whatever it is.
Person 1: “I love eating pizza dude it’s my favorite food.”

Offended Person: “wow, I just can’t believe you, your not even Italian you can’t compliment pizza if your not Italian you racist scum”

Person 1: “it’s a fucking slice of pizza my guy, you’re a prime example of rule 20
by Book_Of_ Rules June 24, 2022
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IT MEANS NO FIRE AND IT IS A BITCH-
Toaster: "Let us burn people."
Fade: "No rule 20 is in affect."
Toaster: "B get rid of rule 20."
B: "No."
by RkuEnergy1020 June 29, 2020
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