foggiest idea

A crackdown on a Tiananmen scale is on many minds, even if no one has the foggiest idea what Beijing is planning.

And I would bet that if you asked Americans about it today, no more than 20 percent would have the foggiest idea what it was.

Fanny had the foggiest idea of what it was, though she noticed that it roughened his hands and stained them.

Have you got the foggiest idea of what in hell she's yammering about?

"The natives haven't the foggiest idea of hygiene," said the doctor finally.

And I went there without the foggiest idea of indulging in the tender pash.