hook off

Short definition from Wiktionary

Verb

1. 1
   To unhook or remove from a hook.
2. 2
   To curve to the side from a straight trajectory.
3. 3
   To remove with a hooking motion.
4. 4
   To depart, especially when finishing something or giving up on something.
5. 5
   To punch with the arm rigid and partially bent.