hold on vs toenail

hold on

verb
  • To grasp or grip firmly. 

  • To remain loyal. 

  • To persist. 

  • To keep; to store something for someone. 

  • Wait a short while. 

toenail

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

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

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