Definition of "dunch"

dunch¹

/dʌnt͡ʃ/

verb
third-person singular simple present dunches, present participle dunching or dunchin, simple past and past participle dunched
1. (Geordie) To knock against; to hit, punch
2. (Geordie) To crash into; to bump into.
3. (Scotland) To gore with the horns, as a bull.
4. (British) To jog, especially with the elbow.

dunch²

/dʌnt͡ʃ/

noun
plural dunches
1. (dialectal) A push; knock; bump.
  Quotations
  And just at the same time the tide caught the brig, and threw the wind out of her sails. She came round into the wind like a top, and the next moment struck the reef with such a dunch as threw us all flat upon the deck, and came near to shake Mr. Riach from his place upon the mast.
  1886 May 1 – July 31, Robert Louis Stevenson, Kidnapped, being Memoirs of the Adventures of David Balfour in the Year 1751: […], London, Paris: Cassell & Company, published 1886
2. (golf) A fat hit from a claggy lie.

dunch³

/dʌnt͡ʃ/

noun
1. (informal, rare) 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.