bum rap vs bummer

bum rap

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

  • An undeservedly unfavorable portrayal or reputation. 

bummer

noun
  • A disappointment, a pity, a shame. 

  • A lamb (typically the smallest of a multiple birth) which has been abandoned by its mother or orphaned, and as a consequence is raised in part or in whole by humans. 

  • A gay man. 

intj
  • Exclamation of annoyance or frustration at a bummer (disappointment). 

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