my foot vs yarbles

my foot

intj
  • Indicates disapproval, disregard, disdain, disgust or disbelief. 

  • Used other than figuratively or idiomatically: see my, foot. 

yarbles

intj
  • Expressing disgust, annoyance, frustration, or disapproval. 

noun
  • Nonsense; something of unacceptably poor quality. 

  • Courage, fortitude, or machismo. 

  • Information that is false or otherwise misleading. 

  • Testicles. 

How often have the words my foot and yarbles occurred in a corpus of books? (source: Google Ngram Viewer )