five-star vs hairline

five-star

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

  • A mark from such a slap. 

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

adj
  • Of the best quality. 

hairline

noun
  • The line along one's forehead where hair starts growing. 

  • A fishing line made from hair. 

  • A very thin line in writing, drawing, or typography. 

  • A very thin fissure. 

adj
  • very thin, as thin as a hair 

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