What does 'Flash in the pan' mean?

If something is a flash in the pan, it is very noticeable but doesn't last long, like most singers, who are very successful for a while, then forgotten.

When someone or something is a "flash in the pan," they were a star or famous for a shorter time than expected. Itcome from the flintlock gun era, when the powder in a flintlock's pan could go off with a flash but not the main charge in the barrel. Itis an expectation of something more than what you actually get.

All idioms have been editorially reviewed, and submitted idioms may have been edited for correctness and completeness.

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