skittle vs sweet spot

skittle

noun
  • One of the wooden targets used in skittles. 

verb
  • To knock down (skittles). 

  • To defeat easily. 

  • (sometimes with out) To rapidly bowl out a succession of batsmen. 

  • To play skittles. 

  • (with down) To squander one's money. 

sweet spot

noun
  • Any of several places on a bat, racquet, etc., with which to hit a ball, resulting in the latter rebounding with some optimal desirable effect, such as minimum vibration or maximum velocity. 

  • Any place that is optimal for obtaining a certain desirable effect or result. 

  • The clitoris, prostate gland, or other center of sexual pleasure. 

  • Any set of conditions that is optimal for obtaining a certain desirable effect or result. 

How often have the words skittle and sweet spot occurred in a corpus of books? (source: Google Ngram Viewer )