bestie vs buddy

bestie

noun
  • best friend; A term of address for someone, usually used to instruct, to make a statement, or to draw attention. 

  • best friend 

buddy

noun
  • An informal and friendly address to a stranger; a friendly (or occasionally antagonistic) placeholder name for a person one does not know. 

  • A partner for a particular activity. 

  • A friend or casual acquaintance. 

verb
  • To assign a buddy, or partner, to. 

adj
  • Resembling a bud. 

pron
  • A person far removed from the conversation. 

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