not have the faintest (notion)

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not have the faintest (notion)

To have no knowledge or understanding about something. He doesn't have the faintest notion how hard it is to run a business. A: "Do you know where the car keys are?" B: "I don't have the faintest, sorry."
See also: faint, have, not
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

not have the faintest (idea)

have no idea. informal
See also: faint, have, not
Farlex Partner Idioms Dictionary © Farlex 2017
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References in periodicals archive ?
JANE RULE: I haven't the faintest notion of how to go about it, except, in my sense, to be open, to be listening, to be asking that we categorize less and less and think more and more about the possibilities, and to know it is scary, and to acknowledge that.
I haven't the faintest notion whether Schutz revels or quakes when she considers her relentless rise to postgrad (Columbia, natch) fame and fortune.
One real showstopper for mass adoption of Linux is a mixture of "lack of awareness" and "fear of the unknown." The vast majority of PC users do not really understand what an operating system is and even though more and more people may have heard of Linux, they probably haven't the faintest notion of what it is or more importantly, what it does.
I haven't the faintest notion how it came to be in the jug but I believe when the hammer dropped I became the legal owner.