What is a free poker bankroll, and where i can get a free poker bankroll?

I heard it from a friend of mine about this free poker bankroll. Are these things real? I have found a lots of this free poker bankroll sites around the net, but they ask me for id, telephone numer and a lot of thing.
Do u know a site with information about free pokers bankroll s ,and some good offfers. I want to start into this poker thing but without risk. And a free poker bankroll would be the best.
Thanks a lot guys!