gully trap
noun1
Australia, New Zealand A trap (preventing the return of gases) through which household drainage can flow to reach outside drains, or the structure in which this is housed.
- Charlie Dabney subsided into an imperceptible chair, and somersaulted in the direction of the gulley-trap. He fell heavily.1963, Ronald Hugh Morrieson, The Scarecrow, Text Classics, published 2012, page 172:
- They bung the tea leaves in the sink, instead of toddling out the back and emptying them on the maidenhair or in the gulley trap.1990, Barry Humphries, The Life & Death of Sandy Stone, page 83: