a nine days' wonder
a one-day wonder

And 1.09 million of those were one-day wonders.

Many initial public offerings are one-day wonders.

But will Mp3.com be just a one-day wonder or a long-term play for investors?

"Obviously those things have an effect, but they're one-day wonders or seven-day wonders."

What was a local problem that might have been a one-day wonder, has become an international issue.

Yet, Waite refused to dismiss himself as a one-day wonder.

Orlando Hernandez was supposed to be a one-day wonder.

"If this is a one-day wonder, there will be some adjustments in interest rates," Mr. Fine said.

And yet, the Super Bowl is but a one-day wonder in the world of betting.

Oh, pitchers throw the odd perfect game, but they are one-day wonders.