Is Jeff Lebowski the Big or Little one?
What is the other's first name?
They're both Jeffrey Lebowski, man. The cripple is The Big Lebowski...you know, cause he's a rich fuck. The Dude is...well, The Dude, so that's what you call him, man ;D
He's the Dude.That, or Duder.
His Dudeness. Or El Duderino.
The dude, if you're not into that brevity thing.