IdiomDaily LifeEnglish

wet blanket

Meaning: A person who is seen as never wanting to take part in fun activities; a person who ruins a good time.

Example: “Don't be a wet blanket; come dancing with us.”

Origin: This expression appears to come from the practice of using a wet blanket to put out campfires. If one thinks of the fire as being vibrant and exciting, then putting a wet blanket over it would extinguish or diminish that excitement.

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