buddy vs double date

buddy

noun
  • A partner for a particular activity. 

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

  • A friend or casual acquaintance. 

adj
  • Resembling a bud. 

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

pron
  • A person far removed from the conversation. 

double date

noun
  • A (romantic) date that two couples go on together. 

verb
  • To go on a double date. 

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