knackered

adjective2

1. •
   (UK, slang) Tired or exhausted.

   • I've got this job in a warehouse just now and it finishes quite early but I'm dead knackered at the end of the day so I don't know about going out and like studying every night. — 2002
2. •
   (UK, informal) Broken, inoperative.

   • In the end though he had to admit that the car was knackered... — 2003