brown sugar vs white lady

brown sugar

noun
  • Heroin. 

  • An attractive black woman. 

  • Sugar which has been only partially refined and still contains molasses. 

  • Refined sugar to which molasses has been added. 

white lady

noun
  • Cocaine. 

  • A cocktail made from creme de menthe, Cointreau, lemon juice and an egg white 

  • A female ghost dressed in white, who is associated with local legends of tragedy. 

  • Used other than figuratively or idiomatically: see white, lady. 

How often have the words brown sugar and white lady occurred in a corpus of books? (source: Google Ngram Viewer )