A term used towards Rusthovens or redheaded people to express sympathy or to indicate that this is "someone's day"
Also an expression used in sadness when something bad has happened to a Rusthoven (typically something involving Chris Andersen, a Rusthoven's natural enemy)
Rusty: Chris Andersen just pooped on my head, he's a faggot
Max: Aww Little Rusty
Steve Kerr: And Raymond Felton is at the top of the key, and he dishes the ball to Chris Andersen.
Reggie Miller: And the Birdman with a savage dunk. He is doing his bird dance, oh and whats this, he is now pooping on a fans head.
Steve Kerr: Aww Little Rusty