Green’s Dictionary of Slang

(US) absolutely worthless, thus dead.

1973		J. Godey Taking of Pelham One Two Three 95: Not that they had a chance [to fight back]. They would be chopped meat before they got their ass six inches off the seat.
2001		A. Schulman 23rd Precinct 102: ‘Any whining piss-ass woman would have been chop meat back then’.