The origin of almost any fucking internet meme you can think of. Site is filled with taboo porn, stupid pictures and other stupid shit.

A couple of examples include the Rick Roll and the motivational pictures. This site has gotten pretty old, and should die immediately because everything they put out is no longer funny, amirite?
4Chan is the source of all the stupid memes you see these days.
by Stay Gold Ponyboy September 06, 2008
Thee breeding ground for internet trolls and perverts. Using an anime imageboard as their platform, both normal and extraordinary people circlejerk and troll one another relentlessly when discussing and criticising within a variety of topics.
Anon-in-rl#1:Have you been to 4chan?
Anon-in-rl#2:Yes, you too?
Anon-in-rl#1:No, but thank you for warning me.
Anon-in-rl#2: No problem.
by FFe October 27, 2014
The even lamer version of Tumblr. And it doesn't get much lamer than Tumblr.
Hey, I just went on 4chan for the first time and managed to throw my social life out the window as well!
by RySwaggasaurus February 06, 2015
a bunch of racist idiots, pedophiles and lowlifes who run their own little circle-jerk community on the internet. they rely on lame prank calls, forum raids and other childish behavior to justify their pathetic existence.
4chan believes immature and prepubescent behavior is 'hip' when it just plain stupid and pointless.
by rob_a January 26, 2007
Basically what Voldemort and Taliban would be as an Internet site, talking shit about 4Chan or even saying 4chan is forbidden on some forums because they're afraid that 4Chan members will pickup on it by Google search and wreck their sites. 4Chan is anonymous's stomping grounds and they're guys you don't want to fuck with, and they have the ability to ruin your life well pass the internet as they are quite skilled and cool hackers. They were even revving up to take on AT&T for a supposed site banning around late 2009.

Their latest thing has been the Jessi Slaughter fiasco, which everyone thought was going to be the end of 4Chan, but it wasn't. It also led to a war on Gawker.com that failed, not because the 4chan hackers suck, because Gawker got lucky and it was an unorganized raid on Gawker's servers, and some of Gawker's technicians caught it before it could go down.
"Hey man 4Chan is possibly responsible for making the internet a way cooler place. Not to mention most people use memes from their without even recognizing it.
by RolphSemensDickOvensUWIDI July 27, 2010
A website few people understand.
In a world where even music has cheapened and obviated the concept of irony, 4chan still practices it. It's often hard for even experienced users to tell the difference between their peers and people too new to the website or too retarded to understand it.

You will not understand 4chan AT ALL until you have been there daily for at least two years.

If you go there the first time, leave, and make a post about it on UrbanDictionary saying how immature and awful it is, you have been greatly trolled and deserve to die for your gullibility. While people claiming to be 'oldfags' hate 'newfags', true 'oldfags' appreciate them as the newer and more naive the general crowd, the better camouflage they make for the TRUE Anonymous users.

That said, there is a lot of unjustifiable on 4chan, because the whole point of chan anonymity is for not everyone in the community to be of the same mold. That is what makes it shocking and/or retarded, but also what tends to make it amazingly clever in a way no one who hasn't lurked for years picking up the nuances can understand.

Also, newfags think it is an army or a political movement, it isn't...it's a somewhat ill-concieved attempt at an extradimensional reconstruction of human thought.

Also, it isn't your personal army unless you are good at social engineering, in which case you can trick new members and the weak-minded into doing your bidding.
When I first visited 4chan I was disgusted and confused, but intrigued by its liveliness and manipulability. I LURKED MOAR, and came to understand it. I despise a lot of the content and think a lot of the ideas prevalent there are retarded to say the least, but it does have truly unlimited potential...

...or at least it would if Moot made it current and got rid of the new captchas -_-
by Mr. Jihgfed AKA David D. August 21, 2010
The SECRET WEBSITE of the HACKERS ON STEROIDS known as ANONYMOUS.
If you ever go to this website, you must GET A DOG AND SHUT THE CURTAINS!
CONFRONTING EVIL
A far-left website known as "4chan" is providing child pornography to internet pedophiles.
by FAUX NEWS January 25, 2009
the absolute heart and soul of the internet. all memes come from here, and it is often a nice community where friendly conversation and debate occurs. on the other hand, there's also much hatred, trolling, and child pornography. many internet subcultures and trends evolved from this website such as rage comics, anonymous, and every other imageboard.

created by Christopher Poole (aka Moot) in an attempt to emulate the japanese futaba channel aka 2chan
/b/reddit

A: Have you ever been to 4chan man?
B: Yeah It's fucking sick
A: hey C, have you been to 4chan before
C: that's my homepage man.
by 12345684787i0hf9egf9wfge April 27, 2012

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