Pirate vs toughie

Pirate

noun
  • someone connected with any of a number of sports teams known as the Pirates, as a fan, player, coach etc. 

  • someone connected with Bristol Rovers Football Club, as a fan, player, coach etc. 

toughie

noun
  • Someone or something that is strong and resilient. 

  • Something that is tough, or difficult. 

  • A tough; Someone or something that acts as a thug or bully. 

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