banjaxed

adjective2

1. •
   (UK, slang) Broken, ruined, shattered; confounded.

   • Here is his black heart sitting there as large as life in the middle of the pulp of his banjaxed corpse. — 1939
2. •
   (UK, slang) Tired, sleepy, cream crackered.

   • I'm completely banjaxed!