toenail vs tweezers

toenail

noun
  • The thin, horny, transparent plate covering the upper surface of the end of a toe. 

verb
  • To fasten two pieces of lumber together by applying nails or screws into both boards at an angle. 

tweezers

noun
  • A small pincerlike instrument, usually made of metal, used for handling or picking up small objects (such as postage stamps), plucking out (plucking) hairs, pulling out slivers, etc. 

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