Definition of dream-hole in English:

dream-hole

noun

dialectBritish, South West English, Northern English
  • A slit or opening in an external wall of a building. Compare "loop-hole", 2.

Origin

Mid 16th century; earliest use found in Churchwardens' Accounts Minchinhampton. Origin uncertain; apparently from dream + hole, on account of the sound of the bells passing through such holes in a church steeple.

Pronunciation

dream-hole

/ˈdriːmˌhəʊl/