22
A site where pretty much anybody can post anything.
I knew 4chan was not for me when I saw a picture of two teenage boys having sex. Jesus christ.
Tom: Hey, I was at 4chan yesterday and I saw some guy raping a goat.

Bob: Yeah, that sure sounds like 4chan.org to me
by FrownyFace August 14, 2009
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23
A shitty forum that has become wildly popular. It is full of child porn images and the origin of many of the shitty internet memes that seem to be oh so popular these days.
Person 1: Hey, did you see that picture of the naked 12 year old having sex with a rhino on 4chan yesterday?
Person 2: Oh yes, I did. She accidentally the whole thing!
by itsmeyay August 26, 2009
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24
The most fucked up,pedophile-infested website on the internet. It is an english-translated pornography imageboard with the japanese form 2chan. its best,more like worst, image board is called /b/, where it mostly contains of child pornography, sexual jokes that aren't even funny, and memes that lose their popularity 5 minutes after it is created. In fact, this website is SO fucked up, that, for example, on subeta, a gaia/deviantart/neopets website, has been hacked by stpid fucking anonymous, a fucking pedophile and moot, some stupid fucking anthro hello kitty ripoff. just because subeta took the longcat (meme on 4chan) meme, so 4chan got all mad and hacked into subeta's creator, keith's paypal and bought 3 playstation 3's and the first season of the fresh prince of bel-air with his money. 4chan also hackec gaia people who used subeta by hacking into a gazillion accounts and posting pictures of dead cats.

4chan fucking sucks.
4chan whore:lulz moar pedobear is gonna get you

anti4chan whore: fuck you get a life you fucking pedophile
by 4chanBlowsSeriousDick June 14, 2008
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25
4chan is hell. The congregation of all assholes, pedophiles, creeps, hackers, and others on the internet. Memes spout from it, and spread quickly. 4chan is like a gigantic titan that should be either killed or locked away in Oblivion.
"LOLOLOLOLOLOL HAXXORZ N00Bz LAWLZ." <typical 4channer.
"dud did u c tht n00 picceh on 4chan lawlz" <even more typical 4channer
Me: "I hate you all."
by tigerdude37 March 01, 2008
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26
4chan is the nexus of the internet, where everything goes to live and die. Especially famous for begetting the rickroll, SHOOP DA WOOP, and lolcats.

The most famous board is certainly /b/, the random board. After that probably comes /a/, the anime board, and then maybe /v/, the video games board.

...See Encyclopedia Dramatica for where much of 4chan goes to die.
I went on 4chan yesterday, I'm pretty sure that my brain fell out.
by Rowan K April 17, 2008
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27
This is where the trash of the internet come out to play. What they post is exceedingly derogatory and immature. Most people, the completely sane minds, would not stray too far into it.
4Chaners should not have their own website to expoloit what they do.
by XoXKissuOxO June 07, 2009
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28
A shitty site for closet homosexuals with no social life with nothing else than anime, gay porn, spam, retarded threads like "rate my (micro)cock", "need advice about <whatever>", "I hate jews and <whatever>".
Whoever wrote the first definition must have been on crack.
4chan sucks like hell but at least it keeps asshole trolls busy.
by Phoenix777 August 01, 2008
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