(Internet slang, fandom slang, informal) The proposition that it is possible to find genderswapped versions of every fictional character, especially as fan arts on the internet.
This kid likes Rule 63
by Oofbaby June 2, 2018
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Rule 63 is a rule of the internet that reads as follows: "For any given male character, there is a female version of that character." This rule's exceptions are only in the instance that A: the male character is already so androgynous that a female version would be basically the same, or B: the female version hasn't been drawn yet.
Nintendu: Rule 63 dont apply to evrythin!
Me: Fine. Name one male character who you think couldn't be made female.
Nintendu: zOMG, Link is so smexy! He's da manliest man evar!
Me: Boo! Here is a picture of Link with tits and a vagina! Muahaha!
Nintendu: (sobs)
by InternetHateMachine August 9, 2007
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What Madison Martin thinks there is
Hay how many genders are there
63
Wrong

2

63 genders : is what a stupid botch thinks
by James76j March 13, 2017
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A 5.56mm general purpose machine gun system. It could be fed from a large capacity magazine or belt, and was a modular system capable of serving in the assault rifle role. The most prominent use of the Stoner 63(A) was by the U.S. Navy SEALs.
The Navy craft was loaded with three Stoner Model 63(A) machine guns, along with the inferior M60.
by JoeBob September 7, 2003
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N. A story in progress that started as a blog written from a girl's journals. She was kidnapped out of her bed and taken to a wilderness camp that abused and killed numerous children. Many peopl read her blog and its being turned into a book. 63 Days is the length of time the "students" were supposed to stay in the program.
"Allison was put in the Challenger program for what was supposed to be 9 weeks, but it went much longer than 63 Days. Because of this ordeal, she went on to write 63days.com"

by Angie Spilsbury December 7, 2006
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Rule 63 is an internet rule that means "For any given male character, there is a female version of that character." This also apply to female characters turning into males. Unlike Rule 34, there are two exceptions to this rule. A: the male character is already so androgynous that a female version would be basically the same, or B: the female version hasn't been drawn yet.
Man: Chun-li is so sexy right about now.
Woman: Bah, here's a Rule 63 Chun-Li without boobs and now with a penis.
Man: Ok that's wrong...Now let me show you Dante with a Vagina and Brest.
by TheFallenWriter July 16, 2010
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another way for saying "fuck me"
gf: i need to tell you something
bf: what?
gf: 3825 63
bf: tonight in-
narrater: you dirty minds should go away now
by the smart one that knows it December 9, 2021
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