On the Internet, one who posts sexually explicit material on a non-porn website is usually saw as a rule breaker. He may get banned, but sometimes they escape. Jerks and ohter guys will make jokes aside on this and say that X broke Rule 34, meaning he posted porn in a normal non-NSFW tag.
Mike, u Rule 34 breaker!
by BangUrMissus September 19, 2015

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Rule 34 - A game with fan art or film is made to exist with sexual content and pornography. Which can also be hentai if it is an anime version. Such as Five Nights at Freddy's.
If you put on porn such as based on a game, you will be sued by the company because you did not listen to rule 34!
by Bleeblabblob August 20, 2015

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It doesn't matter how dark or bizarre, if you can think of it there will a small club dedicated solely to it in Japan.
eg. Have you seen Tokyo? Shibuya is Rule 34 ; love hotels, bestiality restaurants, sex robot love parlors, cosplay sex clubs, soapland, transvestite soapland, rape play, yakuza swingers, anime bondage, knitting bondage. It's nasty!
by moggie June 15, 2012

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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If it exists, there is porn of it.

The exception to rule 34 is the citation of rule 34.

"I invoke Rule 34 on lunch...oh, my god, is that actually a Mountain Dew can fucking a sandwich?"
by poastingfromkitchen December 01, 2007

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The Urban Dictionary T-Shirt

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Involving sexual//explicit things of said person.
Person being told has porn on the internet.
Girl: I still play "the gameeee"....
Boy: But there is also porn of you...
Girl: blank stare]
Boy: Rule 34
Girl:......no comment.....
by Funnymoment November 20, 2009

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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If it exists, there is or will be porn of it... also responible for creating pedophiles
Ten year old:*(Google) Rule 34*
*enter*
Ten year old: OH MY GOD!!!
by Burkus November 02, 2008

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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Isn't exactly what the common perception of it would suggest. See example:
Guy 1: oh man, 'rule 34' this shit STAT, it would be so FUNNY, think of how many childhoods it'll ruin!
Guy 2: *jacking it to assorted rule34 images*
Guy 1: *jacking it to assorted rule34 images*
by fartoxXx September 01, 2008

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt