gang bang vs lechery

gang bang

noun
  • An orgy, especially a sexual one. 

  • Protecting gang turf, especially when dealing drugs or other black market objects. 

  • A gang fight. 

lechery

noun
  • Inordinate indulgence in sexual activity. 

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