boob vs squarehead

boob

noun
  • An idiot; a fool. 

  • A mistake. 

  • A prison; jail. 

  • A breast, especially that of an adult or adolescent female human. 

verb
  • To make a mistake. 

  • To behave stupidly; to act like a boob. 

squarehead

noun
  • A socially conventional or boring person. 

  • A foreigner of Germanic origin, especially a German, Dutch, or Scandinavian person. 

  • An honest person; a non-criminal. 

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