jizz vs reproductive organ

jizz

noun
  • Male ejaculate; sperm, semen. 

  • The physical and behavioural characteristics of a bird that enable it to be immediately recognised by an experienced birder as a certain type of bird, especially to family or genus level. 

verb
  • To ejaculate; to eject semen. 

  • To ejaculate on, over, or into; to cover in semen. 

reproductive organ

noun
  • An organ used for sexual reproduction. 

How often have the words jizz and reproductive organ occurred in a corpus of books? (source: Google Ngram Viewer )