rough up vs toenail

rough up

verb
  • To make rough, to roughen (especially doing so to wood while raising the grain) 

  • to manhandle or beat up 

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 rough up and toenail occurred in a corpus of books? (source: Google Ngram Viewer )