Как по Английски будет 엉뚱한 짓

noun

An unexpected and inexplicable change in a situation or in someone's behaviour.

Примеры использования:

The vagaries of the weather

noun

The action or fact of carrying out a task clumsily or incompetently.

Примеры использования:

He was heavily criticized for his bungling of the case

adjective

Making or characterized by many clumsy mistakes.

Примеры использования:

The work of a bungling amateur

phrasal verb

To spoil something or make it worse

Примеры использования:

There isn’t a mechanic alive who doesn’t louse up a job once in a while.