A variation on the rickroll. Someone posts a bogus link that is purported to be for something interesting, funny, or hot, like lesbians making out. The unsuspecting victim clicks the link, only to see a picture of a penis and/or naked man. Usually the victim is a straight guy, and this of course is not something he wants to see.
Joe was expecting to see some hot lesbian porn, but instead he gotdickrolled.
Similar in nature to the rickroll, dickrolling (or to dickroll someone) is when you send someone a link to chatroulette, knowing they've never been there before, only to assume the first video served up will be a nice, close shot of some dick.
"Dude, have you seen that website, chatroulette? There's so much dick on it!"
"Yes, Susan, in fact I have. My mom sent me a link to it without telling me what it was and the first thing I saw was a dick!"
A variation on the rickroll. Placing a link on a web page that purports to link to interesting content but is in fact a link to a video of Dick Cheney.
Some guy on reddit posted a link in a comment that was supposed to be a lolcat, but it was really a dickroll! Boring!