cum vs female ejaculation

cum

noun
  • Female ejaculatory discharge. 

  • Semen. 

  • An ejaculation. 

prep
  • Used in indicating a thing with two roles, functions, or natures, or a thing that has changed from one to another. 

conj
  • Used in indicating a thing or person with two or more roles, functions, or natures, or a thing that has changed from one to another. 

verb
  • To have an orgasm, to feel the sensation of an orgasm. 

  • To ejaculate. 

female ejaculation

noun
  • The forceful expulsion of fluids from the vagina during the female orgasm, possibly originating from the Skene's gland (paraurethral gland) and/or urethra. 

How often have the words cum and female ejaculation occurred in a corpus of books? (source: Google Ngram Viewer )