bum chum vs intergender

bum chum

noun
  • A male homosexual's partner; a male homosexual. 

intergender

noun
  • A person whose gender identity is midway between male and female. 

adj
  • intergender friendship, intergender wrestling 

  • Being midway between male and female. 

  • Taking place between people of opposite genders. 

How often have the words bum chum and intergender occurred in a corpus of books? (source: Google Ngram Viewer )