1) A quick and effetive way to shut someone up while sounding like the bad ass that you are.
2) A way to respond to someone that is talking to you but you don't care or aren't listening to what they are saying.
Wife: "Did you mow the lawn yet?"
Wife: "Are you even going to mow the lawn?"
Wife: "I'm pregnant."
Wife: "Are you even listening to me?!"
The noise the emporer from star wars makes when he produces force lightning.
Jedi: You don't have your lightsaber anymore!
Jedi: Bleh *dies*