off the hooks

prepositional phrase3

1. •
   (informal) Unhinged; disturbed; disordered.

   • Or was Erskine out of his mind? And he himself Watt was he not perhaps slightly deranged? And Mr. Knott himself, was he quite right in his head? Were they not all three perhaps a little off the hooks? — 1953
2. •
   (informal, no longer used) Superseded.
3. •
   (informal, no longer used) Dead.