butcher boy vs sai bug

butcher boy

noun
  • A male prostitute. 

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

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

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

sai bug

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