If anyone on any social site does not have a picture of themselves, its automatically means they are fat and ugly
guy 1- hey man i just met this girl over webcam
guy 2- how did she look?
guy 1- well her webcam was off
guy 2- Rule 10 bro

guy 2- hey bro i been talking to this girl on a social network site, we might meet up soon
guy 1- nice, man. she good looking?
guy 2- well i haven't seen a picture of her... we wanted to keep it like that til the day we meet
guy 1- rule 10 bro
by Lendeezy January 26, 2012
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In the bourbon community, Rule 10 prohibits negative opinions from being given unless such thoughts were solicited. It's the play nice or go home rule. It potentially encourages whiskey tater behavior and convinces others to buy very poor choices based on the posters high praise of said bottle with no negative feedback from others. As a work around, commenters will often post 'Rule 10' to express their belief said bottle does not deserve such praise.
by mastertater August 26, 2020
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Any person that one thinks is interested in them, is not.
"Hmmm, I think she likes me. Oh, Rule 10..."
by bugmore November 23, 2013
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According to the Rule of 10, No one is allowed to call someone after 10pm or before 10am unless it is absolutely Important.
*ring ring*
Bob: uhhg, hello?
John: hey. what's up?
Bob: Why the hell did you call me, it's... 2am...
John: Oh, I just got out of the club, I was seeing what you were doing.
Bob: Did you forget the Rule Of 10?
by Immortal-Jake August 12, 2007
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voluptuous nun with big fuckin tiddies
Dude1: damn bro I think that nun got me acting up!

Dude2: Rule no. 10 fuck yea ambatukam
by Capn' Lock July 20, 2022
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One must be ten percent smarter than the object/task one is attempting to use/accomplish.

For instance, pushing a pull door or failing at some other seemingly simple task.
Friend 1: Did I hear correctly that your girlfriend got locked in her own car?

Friend 2: Yeah. 10% rule, dude.
by PeteWine February 9, 2009
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When two friends of opposite sexes are simply friends and not fuck buddies or whatever people fantasize about in their twisted heads.
Dude, my friend and I are definitely not following the 10% rule. We have sex like every other day.
by the10% October 23, 2012
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