muff diver vs same-sexer

muff diver

noun
  • A lesbian. 

  • One who performs cunnilingus. 

same-sexer

noun
  • One who is attracted to, or engages sexually with, members of the same sex; a homosexual 

How often have the words muff diver and same-sexer occurred in a corpus of books? (source: Google Ngram Viewer )