A flash in the pan
/ə flæʃ ɪn ðə ˈpæn/informalUK · US
What does “A flash in the pan” mean?
A flash in the pan means a brief success that is not repeated or sustained
A band may have one huge song and then disappear. Someone might dismiss it as a flash in the pan, though that judgement could be premature.
The phrase is about short-lived success, not simply something happening quickly. A fast but lasting achievement is different.
When do people say it?
Use it for a success, performer or trend that attracts attention and then fades. It often expresses doubt about lasting ability or appeal.
“Their first hit was a flash in the pan; the next album barely sold.”
Is it formal or informal?
Register: informal. It is most at home in everyday conversation rather than formal writing. Most common in UK and US.
Where does it come from?
The image comes from a gun’s priming powder flashing without producing the expected shot. A promising start fails to lead to a lasting result.
Origin confidence: Disputed; treat with caution
How do you say “A flash in the pan” in other languages?
Last updated 2026-11-04