jawbone vs lower jawbone

jawbone

verb
  • To talk persistently in an attempt to persuade somebody to cooperate. 

noun
  • The bone of the lower jaw; the mandible. 

  • A shaken musical instrument (an idiophone) made from the jawbone of an animal and shaken such that the teeth vibrate in their sockets to produce sound. 

  • Any of the bones in the lower or upper jaw. 

lower jawbone

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