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

throw cold water on

To express misgivings about or disapproval of; discourage.
See also: cold, on, throw, water
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