cum vs night emission

cum

noun
  • An ejaculation. 

  • Semen. 

  • Female ejaculatory discharge. 

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. 

night emission

noun
  • An ejaculation or orgasm while asleep, often accompanied by an erotic dream. 

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