What is Knacker's Yard?
1.
Area of a slaughterhouse where animal carcasses unfit for human consumption are rendered into useful materials such as glue.
As an English colloquial expression, it is used to describe a person or object that is spent beyond all reasonable use, as in "He is only fit for the knacker's yard".
"If Barry Bonds' knee gets any worse, the only trade the Giants will find possible is one with the knacker's yard".
See