throw cold water on (something)

throw cold water on (something)

To temper excitement or enthusiasm for something. After I passed the final exam, my teacher promptly threw cold water on my excitement by reminding me that I still have to go to summer school.
See also: cold, on, throw, water
Farlex Dictionary of Idioms.

throw cold water on

To express misgivings about or disapproval of; discourage.
See also: cold, on, throw, water
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • throw cold water on
  • ripple of excitement
  • a cold shower
  • burst with excitement
  • geek out
  • geek out about (someone or something)
  • geek out over (someone or something)
  • stir the blood
  • be something to shout about
  • be here for (something)