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the foggiest (idea)

Knowledge or understanding of something. Typically used in the negative to show that one does not know something. He does not have the foggiest idea how hard it is to run a business. Where are your keys? I haven't the foggiest.
See also: foggy
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

foggiest (idea)

Fig. (even) a hazy idea. (Usually in the negative.) I'm sorry I don't know. I haven't the foggiest. I don't have the foggiest idea of how to do this.
See also: foggy
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
December arrives Thursday; from now to January is our foggiest time of year.
New teachers certainly know art history and can write a lesson plan, but they do not have the foggiest idea of how to teach in a classroom setting.
Regarding the impact East Timor's future will have on the project, a company official said, ''We don't have the foggiest idea.
Schneider's piece is symptomatic of news media that often don't have the foggiest idea how the military works, and don't really appear to care.
"Many don't have the foggiest idea what we do." They issue unreasonable, ludicrous orders and make promises to residents and families that can't be kept.
Teachers know what's going on in their classroom and their school but few have the foggiest notion about the system of which they are a part."
Court of Appeals for the District of Columbia doesn't have the foggiest idea of what the First Amendment is.
Moreover, there are new clients in the private sector who haven't the foggiest idea what FLSA requires of them, if anything, and who look to their accountant for advice.
had not the foggiest idea of what was taking place behind the Iron Curtain or the Berlin Wall; and the picture that our military experts had of Saddam Hussein's military capability was equally wide of the mark.
Perhaps the words are wise, but one has not the foggiest notion of where and how to begin setting performance measures.
Gordon McVie, scientific director of Britain's Cancer Research Campaign, calls the proposals to engineer tumor cells instead of TIL cells "absolutely brilliant." He adds, "We haven't got the foggiest idea which one will work better."
The general maintains that he hasn't "the foggiest idea what it means:' "Unfortunate" is too generous a word to characterize the committees' neglect of key passages in the secret life of Oliver North.
military hasn't the foggiest idea of how to help them achieve that.
Meanwhile, James, played by Dylan Llewellyn, obviously doesn't have the foggiest idea what these wee girls are going on about.
But on ITV's Brexit - What's Your House Worth?, the expert view was no one had the foggiest. A posh estate agent did reveal foreign investors in London were not quite getting the returns they expected to fund their super-yacht lifestyle.