What is Just Shoot Me?
1.
An utterance of defeated frustration and exasperation. Often used in overly one-sided argument by someone who is too tired to fight, or is in a hopeless bind.
Look, I KNOW the horse is out the gate, I left it open, he's gone. I KNOW. I'm gonna go look for him... why you still beating on me? Get it over with and just shoot me already. Christ on a bike.