boff vs five-star

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. 

five-star

noun
  • A mark from such a slap. 

  • A hard slap on bare skin with a hand that leaves a red, fully hand-shaped mark. 

adj
  • Of the best quality. 

verb
  • To slap someone hard with the hand on bare skin, leaving a red, fully hand-shaped mark. 

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