Red vs fire-crotch

Red

noun
  • A supporter of a sports team who wears red as part of their kit. 

  • A Communist. 

adj
  • Communist 

name
  • A nickname given to someone who has or had red hair. 

fire-crotch

noun
  • A person who has red pubic hair. 

How often have the words Red and fire-crotch occurred in a corpus of books? (source: Google Ngram Viewer )