Based on this thread, I think you'd have to explain "cool" to a lot of people here.
Okay, but who's cool enough to teach us cool? Fonzie?
That would probably be too extreme to begin with. Might cause some kind of shock. Probably better start with someone closer to the beginning level, like Dilbert or Chuck Bartowski Norris.
There, fixed it for you. Yes, Dilbert is cool too