bum rap vs plaint

bum rap

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

  • An undeservedly unfavorable portrayal or reputation. 

plaint

noun
  • An accusation. 

  • A complaint. 

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