🇬🇧 Nutcase meaning: English Vocabulary Flash Card

A nutcase is someone who acts in a very, very silly or wild way, so that other people laugh or think, “Wow, they’re being really goofy right now!” It’s usually used as a joke or when you’re teasing, not as a kind or polite word, so it’s better to use it carefully or just with people you know well who won’t feel hurt.

Our team’s nutcase tried to score a goal in the wrong net, then congratulated himself for “confusing the enemy.”

The nutcase in the library whispered “shhh” to himself every time he turned a page.

Our neighbor is such a nutcase that he talks to his plants and gives them weather reports every morning.

Grandpa wore two different shoes and said it was a new fashion, but we knew he was just being a lovable nutcase.

My cousin is a nutcase who tried to brush his teeth with whipped cream because he thought it would taste better.

On the bus, a nutcase danced in his seat, juggling apples and singing to strangers. People whispered, "What a nutcase!" The driver smiled. A little boy pointed and giggled, "Nutcase!" A stern woman offered an apple; the nutcase bowed and shared it. Everyone laughed, and the bus felt kinder, not afraid of the nutcase.

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

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