men in white coats idiom       
 old-fashioned informal sometimes humorous (指将某人送到精神病院的)穿白大褂的人
used to refer to people who come to take someone to a psychiatric hospital
  He was in and out of psychiatric hospitals for 10 years, escorted by men in white coats.  他被送进送出精神病院,这样反反复复了10年。 
 She had visions of being bundled into a straitjacket by the men in white coats. 她头脑中有自己被穿白大褂的人塞进紧身衣内的场景。 
 It was time to call out the men in white coats. 是把穿白大褂的人叫来的时候了。