bungle vs gaffe

bungle

noun
  • A botched or incompetently handled action or situation; a blunder. 

verb
  • To incompetently perform (a task); to ruin (something) through incompetent action; to botch up, to bumble. 

  • To act or work incompetently; to fumble. 

gaffe

noun
  • A foolish and embarrassing error, especially one made in public. 

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