ignoramus vs wing nut

ignoramus

noun
  • A totally ignorant person—unknowledgeable, uneducated, or uninformed; a fool. 

verb
  • To make such a ruling against (an indictment). 

wing nut

noun
  • One who advocates extreme measures or changes, especially if they hold or are perceived to hold far-right viewpoints; a radical or reactionary. 

  • A nut with wing-like projections to provide leverage in turning with thumb and forefinger. 

  • Someone with large, protruding ears. 

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