Charlie vs shitneck

Charlie

noun
  • A fool. 

  • A woman's breast 

  • An enemy; the Vietcong; short for Victor Charlie. 

  • Cocaine. 

  • A short, pointed beard, like that of King Charles I. 

name
  • A diminutive of the male given name Charles; also used as a formal given name. 

  • A diminutive of the female given name Charlotte or Charlene, also used as a formal given name, although less common than the male name. 

  • A name for a fox in fables and folk literature. 

shitneck

noun
  • An idiot; an objectionable person. 

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