What is clitoris?

I have heard rumours about something called "clitoris", anyone care to explain to me what this legend is?

>>1
If you're seriously asking it, you suck. Go read an anatomy book moron! How old are you anyway?

Btw, it's really hard to find it (unless you're a girl). You know where it is, and try to find it with your fingers but no luck. :P Well, at least for the first try.