body blow vs sucker punch

body blow

noun
  • A hard punch struck to the torso. 

  • A serious setback; a traumatizing event which prevents or hinders continuation of an activity. 

  • A severely injurious or damaging physical strike or impact. 

sucker punch

noun
  • An unexpected punch or similar blow. 

  • A disabling punch targeting a place which is not normally acceptable in a "fair fight", such as on the back of the head. 

verb
  • To deliver an unexpected blow. 

How often have the words body blow and sucker punch occurred in a corpus of books? (source: Google Ngram Viewer )