bar sinister vs dirty dig

bar sinister

noun
  • A state or characteristic which is dishonorable or shameful; a stigma. 

  • A bend sinister or baton sinister in a coat of arms. 

  • The state or characteristic of having been born out of wedlock; illegitimacy; bastardy. 

dirty dig

How often have the words bar sinister and dirty dig occurred in a corpus of books? (source: Google Ngram Viewer )