Penn indicated such an idea would not fly.

The idea that language was a spandrel, a term coined by Gould, flew in the face of natural selection.

About the flight to the north , my original idea was flying.

No one seemed to think the idea would fly.

Not her idea of a good night to fly, but she wasn't too worried about it.

We've reached a time when the idea of automatic tax-free status simply won't fly anymore.

No one really knows yet whether this idea will actually fly on a wide scale.

Moscow now appears to realize that the idea won't fly.

The idea of using a conventional division in Afghanistan just doesn't fly.

These ideas fly in the face of the conventional wisdom that we should strive for ever-greater economic efficiency.