old-timer vs twirly

old-timer

noun
  • One who has been around for a long time or has a great deal of experience; a veteran. 

twirly

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

adj
  • coiled or curly 

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