doodle vs harvest mite

doodle

noun
  • Any crossbreed of a poodle with a different breed of dog. 

  • Penis. 

  • A small mindless sketch, etc. 

verb
  • To draw or scribble aimlessly. 

  • To drone like a bagpipe. 

harvest mite

noun
  • Any of various mites of the genus Trombicula that inhabit forests and grasslands and which, in their larval stage, attach to various animals including humans and feed on skin, often causing itching. 

How often have the words doodle and harvest mite occurred in a corpus of books? (source: Google Ngram Viewer )