hee-haw vs nixes

hee-haw

noun

  • Nothing. 

  • The cry of an ass or donkey. 

verb

  • To utter the cry of an ass or donkey. 

intj

  • The cry of an ass or donkey. 

nixes

noun

  • nothing 

How often have the words hee-haw and nixes occurred in a corpus of books? (source: Google Ngram Viewer )