bum rap vs calumny

bum rap

noun
  • A false accusation, or an injustice, especially one that leads to imprisonment. 

  • An undeservedly unfavorable portrayal or reputation. 

calumny

noun
  • A false accusation or charge brought to tarnish another's reputation or standing. 

  • Falsifications or misrepresentations intended to disparage or discredit another. 

verb
  • To make false accusations or levy false charges against a person with the intent to tarnish that person's reputation or standing; to calumniate. 

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