The act of going onto a random video chat service (i.e. chat roulette, omegle, etc.), getting naked, laying on your side, and tucking your penis in between your legs. Then you point the webcam between your upper thigh and lower torso, and begin to video chat with strangers. Once another male believes he is looking at a vagina, you start to tease him and make him believe your a chick. Once he says the key words to "open your legs" or "show me more", you open your legs real wide and say "YOU'VE JUST BEEN DICK ROLL'D!!"
Friend 1: Hey dude, did you get any tits on Omegle last night?
Friend 2: No, I never do, so I just Dick Roll'd a bunch of people.
Freind 1: That's fucking nasty bro.
Friend 2: Yea I know, but the look on their faces is priceless!