cool??

What constitutes something to be cool?? Is it what i think is cool? or you think is cool? again, what is cool? cool must surely being something defined by n individual themselves...for instance, i think that some movies are cool. And also that cool is a state that someone can attain, like a state of mind. I remember going to school in Michigan and everyone at school had just started using the word cool. All the cool kids say cool. Lol, and cool is often defined by celebrities, like the ones down the side of the page. they made blonde cool, or the new cool dress, the new cool look. Is cool just plain boring? and over used. Im beginning to think so.