unhooking

Verb

unhook (third-person singular simple present unhooks, present participle unhooking, simple past and past participle unhooked)

1. (transitive) To remove from a hook.
   • A rather interesting and notable convenience, however, is that of ice water bags, which are hung on to the outside of the coaches at certain stops. These can be reached by leaning out of the window rather perilously, to unhook them, and paper cups are stocked in the compartments.1951 February, K. Westcott Jones, “Some Australian Railway Byways”, in Railway Magazine, page 118
2. (transitive) To unfasten by means of hooks.
   • to unhook a bra
3. (colloquial, transitive) To unfasten the bra of (its wearer).