laceration vs slash fiction

laceration

noun
  • The act of lacerating or tearing. 

  • An irregular open wound caused by a blunt impact to soft tissue. 

slash fiction

noun
  • A work in the genre of slash fiction 

  • A genre of fan fiction focusing on romantic and/or sexual relationships between characters of the same sex (typically men). 

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