The idiom "wet blanket" is used to describe someone who spoils the fun or excitement of a situation by being negative, pessimistic or discouraging. It is often used to describe a person who is a killjoy or a buzzkill.
For example, if a group of friends are planning a fun night out and one person keeps complaining about the cost, the weather, or the location, they can be called a wet blanket. Similarly, if someone is always criticizing or finding faults in other people's ideas or plans, they can also be referred to as a wet blanket.
The term "wet blanket" comes from the literal meaning of a damp blanket that can ruin a cozy and warm atmosphere. In the same way, a person who brings negativity or pessimism can dampen the mood and ruin the fun.
So, if you want to describe someone who is spoiling the fun or excitement of a situation, you can use the idiom "wet blanket."
• Sarah was such a wet blanket at the party last night, always complaining about the music and the people.
• The CEO was a wet blanket and shot down all of our innovative ideas without giving them a fair chance.
• My friend is a wet blanket and never wants to do anything fun.
• Don't be a wet blanket, let's go out and enjoy the beautiful weather.
• I don't want to be a wet blanket, but I think we should consider the risks before investing in this new business venture.
• Despite the rain, the wedding was a success, and no one could dampen the mood, not even the wet blanket of a best man.