泼冷水 (pō lěng shuǐ): Pour cold water / Dampen enthusiasm (verb/phrase) — Meaning & Stroke Order

I wanted to go play in the park, but my mom poured cold water on my idea by saying it's raining.

He had just proposed his business idea when someone poured cold water on it by questioning its feasibility.

He planned to open a new store, but his friend poured cold water on his plan by saying business is tough now.

Why do you always pour cold water on everyone's high spirits and dampen the team's morale?