gills vs kisser

gills

kisser

noun
  • Mouth. 

  • One who kisses. 

  • The kissing gourami. 

  • A button on a bowstring that indicates consistent height when drawing a bow, for example by being placed against the archer's mouth . 

  • Face. 

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