kidskin vs sperm blossom

kidskin

noun
  • The skin or hide of a kid, i.e., a young goat. 

  • The leather made from such skins. 

sperm blossom

noun
  • A child; one’s offspring. 

How often have the words kidskin and sperm blossom occurred in a corpus of books? (source: Google Ngram Viewer )