If you mess with the bull you get the horns. If you mess with 4chan, you apparently get dirty, dirty porno.

YouTube recently banned the account of a user known as lukeywes1234, a kid who was a fan of Mario and made some funny videos enjoyed by 4chan's army of anonymous users. (Click through for an example.)

In response, they have put out a call to make Jan. 6, 2010, into porn day on YouTube.

4chan, in case you didn't know, was intended to simply be an image-sharing bulletin board, until it spiraled into a force of nature collectively known as "Anonymous." They are responsible for last year's massive Scientology protests, which branched into the real world, as well as outing more than one sex offender on the Internet.

Tomorrow's 4chan plan is for users to make anonymous accounts and splice porn into generic videos, sneaking as much graphic sex onto the site as possible. Undoubtedly YouTube will catch much of it, but 4chan and Anonymous have proved themselves to be far more organized and capable than serial Rickrolling would have you believe.

So don't be surprised if that blooper video of sneezes you watch tomorrow suddenly takes a naughty twist.