debauchery vs gang bang

debauchery

noun
  • Indulgence in sensual pleasures; scandalous activities involving sex, alcohol, or drugs without inhibition. 

gang bang

noun
  • An orgy, especially a sexual one. 

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

  • A gang fight. 

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