rummy vs wild card

rummy

noun
  • A card game with many rule variants, conceptually similar to mahjong. 

  • A rum-drinking alcoholic. 

adj
  • Resembling or tasting of rum. 

wild card

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

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

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