ruffian vs wild card

ruffian

noun
  • A scoundrel, rascal, or unprincipled, deceitful, brutal and unreliable person. 

adj
  • Brutal; cruel; savagely boisterous; murderous. 

verb
  • To play the ruffian; to rage; to raise tumult. 

wild card

noun
  • A competitor or team that is allowed to compete in a tournament despite not reaching the normal standards to qualify for inclusion. 

  • A card that can be assigned any value or used to substitute for any needed card. 

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