at-bat vs butcher boy

at-bat

noun
  • official at-bats. Batting opportunities minus walks, hit by pitches, and sacrifices 

  • An opportunity to hit. 

butcher boy

noun
  • Batting at a pitch with a short swing from a bunt position; a slash bunt, a slug bunt. 

  • A male prostitute. 

  • A woodlouse, any of various terrestrial crustaceans of the suborder Oniscidea. 

  • A man or boy who works for a butcher shop; a butcher's boy. 

How often have the words at-bat and butcher boy occurred in a corpus of books? (source: Google Ngram Viewer )