The idiom "good grief" is an expression used to convey surprise or frustration. It originated in the early 1900s and gained popularity through its usage in the comic strip "Peanuts" by Charles M. Schulz, where the character Charlie Brown frequently exclaimed "Good grief!" in response to various situations.

What is the origin of the idiom "good grief" and when to use it?

英語での「good grief」の定義と意味

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