backside vs moneymaker

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 

moneymaker

noun
  • (usually a woman's) butt, ass, rear end 

  • Someone or something that earns or makes money; anything lucrative or profitable. 

  • A lady’s breast. 

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