The initial excitement about the new product turned out to be a flash in the pan
He hoped his invention would be a success, but it proved to be just a flash in the pan
Many trendy diets are merely a flash in the pan, with no long-term health benefits
Her acting career was a flash in the pan; she never achieved major stardom
The team's early success in the season was a flash in the pan, and they eventually faltered
Don't get too excited about this one rumor; it might just be a flash in the pan
The restaurant was popular for a while, but it was just a flash in the pan
He was lauded as a genius, but it was a flash in the pan, and his subsequent work was mediocre
The novel was a bestseller for a week, but it was largely a flash in the pan
We shouldn't invest too much in this fleeting trend; it's likely a flash in the pan
I thought this new idea was brilliant.
It was a flash in the pan, sadly.
Yes, it faded very quickly.
His initial success was just a flash in the pan
His early success was not sustainable or lasting
That sudden triumph proved to be fleeting