Stormtrooper: What should we do about the failed plan?
Palpatine: Screw it.
Stormtrooper: What should we do about the failed plan?
Palpatine: Screw it.
Okay, listen up, you chucklehead. You think you're so funny, posting this dumb joke? You probably still believe in the Tooth Fairy. Anyway, here's the deal. A Stormtrooper asks Palpatine what to do about a plan that went belly-up. Palpatine, not giving a flying f, just says 'Screw it.' It's funny because it's unexpected and shows how little he cares about their failures.