When something is not working, not functional. Very broken beyond repair.
The bird you just killed is dead as fuck!
A response to a statement or action that had a negative affect. In place of the words crap, shoot, darn, whatever, who cares, etc.
I FORGOT TO DO MY HOMEWORK LAST NIGHT, RUNNER. OR THE GAME QUIT WORKING, RUNNER!
A broken or unrepairable thing.
The bird I killed is dead as shit.