Question: one flew over the cuckoo's nest what did they do to mcmurphy?
Answer: McMurphy is given a lobotomy for his attack on Nurse Ratched. When he is returned to the ward after the operation, he is a vegetable. That same night, Bromden suffocates McMurphy with a pillow. He throws the control panel through a window screen and escapes from the hospital, hitching a ride with a trucker.