cold water, to pour/throw

cold water, to pour/throw

To discourage, to dampen pleasure or enthusiasm. The analogy dates back at least to Roman times, when Plautus used it (Aquam frigidam suffundunt, “They pour cold water on us”), and also appears in William Scarborough’s collection of Chinese proverbs (1875).
See also: cold, pour, throw
The Dictionary of Clichés by Christine Ammer
See also:
  • worth its/one's weight in gold
  • run with the hare, hunt with the hounds, to
  • a cold day in Hell
  • at (one's) pleasure
  • at your/somebody's pleasure
  • off the hook, to get/to be let
  • have had the pleasure
  • cat that swallowed the canary, (look) like the
  • in clover, to be/live
  • skin and bones, (nothing but)