Nat vs jackass

Nat

noun
  • A member or supporter of the Scottish National Party. 

  • A member or supporter of the Australian National Party. 

  • A member or supporter of the New Zealand National Party. 

name
  • A diminutive of the female given name Natasha, Natalie, Natalia 

  • A diminutive of the male given name Nathanael, Nathaniel, Nathan 

  • A surname 

jackass

noun
  • A male donkey. 

  • A foolish or stupid person. 

  • An inappropriately rude or obnoxious person. 

  • A jack and an ace as a starting hand in Texas hold 'em. 

  • A kind of bootleg liquor. 

verb
  • To behave very obnoxiously. 

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