Sometimes it's just too difficult to devote all of one's attention to Chatroulette.
Therefore, a friend or other lame individual will launch Chatroulette, focus the webcam on his group of bros, and keep pressing "Next" through the amalgam of dicks, until he finally comes across a female. This "Manager" will then alert his bros immediately.
Chatroulette Manager: "Guys I got one! Oh shit, it just turned into a little fat kid."
Avi: "Any luck, Chatroulette Manager?"
Manager: "Nope, we're at 50:1 Man to Woman ratios."