bop vs tan

bop

verb
  • To strike gently or playfully. 

  • To walk the streets while socializing. 

  • To dance to this music, or any sort of music with a marked beat. 

  • To have sex. 

  • To fellate. 

noun
  • A very light smack, blow or punch. 

  • A party hosted by a college's JCR or MCR. 

  • A style of improvised jazz from the 1940s. 

  • A good song. 

tan

verb
  • To spank or beat. 

  • To change an animal hide into leather by soaking it in tannic acid. To work as a tanner. 

  • To kill by gun, to shoot. 

  • To change to a tan colour due to exposure to the sun. 

noun
  • Synonym of picul, particularly in Cantonese contexts. 

  • A yellowish-brown colour. 

  • A twig or small switch. 

  • A darkening of the skin resulting from exposure to sunlight or similar light sources. 

  • An Armenian drink made of yoghurt and water similar to airan and doogh 

  • The bark of an oak or other tree from which tannic acid is obtained. 

num
  • The second cardinal number two, formerly used in Celtic areas, especially Cumbria and parts of Yorkshire, for counting sheep, and stitches in knitting. 

adj
  • Yellowish-brown. 

  • Having dark skin as a result of exposure to the sun or an artificial process intended to mimic this effect. 

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