Weirdness. What is it?

I would like to ask every one out there on yahoo answers exactly what weird is! I am often called it by my friends (I usually embarrass them by shouting loudly for no reason as if to prove it. And make them wish they didn't say it), but anyway, is there a dictionary definition of weird? Tell me stories of your own weirdness (or your friends being weird)! Thanks for any answers :)