not have the foggiest notion

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Related to doesn't have the foggiest notion: the foggiest idea

not have the foggiest notion

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