sluice down

sluice down

1. To pour down (from or into something) in large amounts. The rain is positively sluicing down outside. I could hear the gurgle of the water sluicing noisily down the drain in the bathroom next to my room.
2. To clean or rinse something with a large flow or stream of water. In this usage, a noun or pronoun can be used between "sluice" and "down." The boss told me to go sluice down the stables and put down fresh hay. It's an old filmmakers' trick to sluice down the roads when shooting at night—they show up much better on film that way.
See also: down, sluice
Farlex Dictionary of Idioms.

sluice something down

to rinse something down; to flood the surface of something with water or other liquid to clean it. John sluiced the driveway down. Karen sluiced down the garage floor.
See also: down, sluice
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • come down in buckets
  • bucket down
  • come a gutser
  • be down to (one)
  • be down to somebody/something
  • be down to something
  • be down to (do something)
  • bounce up and down
  • chuck (something) down
  • chuck it down
References in periodicals archive
This weekend you'll sluice down the car while the washing machine and dishwasher gurgle away but so what, it's only water.
If you just want to clean the car and sluice down the steps, you won't want one powerful enough to strip bark from a tree.