goodbye vs pip pip

goodbye

intj
  • Farewell; a formula used to another person or persons when the speaker, writer, or person addressed is departing. 

verb
  • To say goodbye; to wish somebody farewell on parting. 

noun
  • An utterance of goodbye, the wishing of farewell to someone. 

pip pip

intj
  • Goodbye; cheerio, toodeloo (toodle-oo), toodle pip (mostly used by the upper classes). 

  • Used to create enthusiasm, mostly by the upper classes. 

  • A general greeting, mostly used by the upper classes. 

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