chin vs dewlap

chin

noun
  • The bottom of a face, (specifically) the typically jutting jawline below the mouth. 

  • The lower part of the front of an aircraft, below the nose. 

  • A person of the upper class. 

  • Talk. 

  • The ability to withstand being punched in the chin without being knocked out. 

  • The bottom part of a mobile phone, below the screen. 

  • A lie, a falsehood. 

  • A chinchilla. 

verb
  • To indicate or point toward (someone or something) with one's chin. 

  • To perform a chin-up (exercise in which one lifts one's own weight while hanging from a bar). 

  • To put one's chin on (something). 

  • To punch or hit (someone)'s chin (part of the body). 

  • To turn on or operate (a device) using one's chin; to select (a particular setting) using one's chin. 

  • To put or hold (a musical instrument) up to one's chin. 

dewlap

noun
  • The sagging flesh on the throat of an elderly human. 

  • The pendulous skin under the neck of an ox, or a similar feature on any other animal. 

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