defilement vs gang bang

defilement

noun
  • The protection of the interior walls of a fortification from enfilading fire, as by covering them, or by a high parapet on the exposed side. 

  • The state of being defiled. 

  • The act of defiling. 

gang bang

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

  • An orgy, especially a sexual one. 

  • A gang fight. 

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