The antagonist in the 1962 Ken Kesey novel "One Flew Over the Cuckoo's Nest" and in the 1975 movie of the same title. The overbearing, cruel, perfectionist nurse (ranked number 5 in AFI's list of Greatest Movie Villains) rules the asylum in the story with an iron fist.
The name "Nurse Ratched" can be applied as an insult to a person (usually a woman) of similar characteristics.
"No TV for the rest of the week and I'm coming up there to unplug the Playstation once your father gets home. You'll get worse until I see an A on your next report card" Mom said.
"Why don't you just cut my heart out, Nurse Ratched!" Timmy cried.