dunch vs packed lunch

dunch

noun
  • A leisurely meal between lunch and dinner in the late afternoon or early evening (about 3-5 p.m.), usually instead of lunch or dinner. 

  • A fat hit from a claggy lie. 

  • A push; knock; bump. 

verb
  • To crash into; to bump into. 

  • To jog, especially with the elbow. 

  • To gore with the horns, as a bull. 

  • To knock against; to hit, punch 

packed lunch

noun
  • A picnic meal, sandwiches or anything packed and intended to be eaten away from home. 

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