backside vs booty

backside

noun
  • A person's buttocks. 

  • Used other than figuratively or idiomatically: see back, side. 

  • The back side of an estate: the backyard and outbuildings behind a main house, especially (UK dialect, euphemistic) an outhouse. 

  • The reverse or opposite of anything. 

adj
  • Used other than figuratively or idiomatically: see back, side. 

  • Approaching an obstacle backward 

booty

noun
  • The buttocks. 

  • A form of prize which, when a ship was captured at sea, could be distributed at once. 

  • Something that has been stolen or illegally obtained from elsewhere. 

  • Sexual intercourse. 

  • The vulva and vagina. 

  • Plunder taken from an enemy in time of war, or seized by piracy. 

  • A person considered as a sexual partner or sex object. 

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