bird dog vs cavalier

bird dog

noun
  • A hyperextension exercise performed lying on the knees, with one arm and the opposite leg lifted. 

  • A dog, especially a pointer, used in shooting to retrieve the dead birds. 

  • A tout. 

  • A person who seeks out real estate investment opportunities in exchange for a fee. 

  • A person who tries to steal someone else's romantic partner 

  • A radar detector (for detecting police speed traps). 

verb
  • A multiservice tactical brevity code requesting configuration of sensors. 

  • To seek out. 

  • To watch closely. 

cavalier

noun
  • Someone with an uncircumcised penis. 

  • A gentleman of the class of such officers 

  • A defensive work rising from a bastion, etc., and overlooking the surrounding area. 

  • A military man serving on horse, (chiefly) early modern cavalry officers who had abandoned the heavy armor of medieval knights. 

  • A Cavalier King Charles Spaniel, a small breed of spaniel of English origin with a silky, smooth coat and commonly a smooth undocked tail. 

  • A gallant: a sprightly young dashing military man. 

  • A courtesan or noble under Charles I of England, particularly a royalist partisan during the English Civil War which ended his reign. 

adj
  • Of or pertaining to the party of King Charles I of England (1600–1649). 

  • High-spirited. 

  • Not caring enough about something important. 

  • Supercilious. 

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