genarian vs twirly

genarian

noun
  • An elderly person, especially one over the age of 60. 

adj
  • Concerning rules or principles as opposed to acts. 

twirly

noun
  • an old age pensioner or other elderly person, especially one using public transport. 

adj
  • coiled or curly 

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