in-joke vs quip

in-joke

noun
  • Synonym of inside joke (“a joke that is understood or meant to be understood only by certain people who are aware of the details”) 

quip

noun
  • A smart, sarcastic turn or jest; a taunt; a severe retort or comeback; a gibe. 

verb
  • To make a quip. 

  • To taunt; to treat with quips. 

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