body blow vs boff

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. 

boff

noun
  • A hit or smack. 

  • A great success; a hit. 

  • A pupil who works hard; a swot. 

  • A line in a film etc that elicits such a laugh. 

  • A big laugh. 

verb
  • to have sexual intercourse (with someone) 

  • To hit; to strike. 

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