(one) hasn't the foggiest

(one) hasn't the foggiest

To have no knowledge or understanding whatsoever about something. I'm trying to find my car keys, but I just haven't the foggiest where they could be. A: "Did you have any idea what would happen?" B: "I hadn't the foggiest, I swear!" A: "Do you know where Miss Light is?" B: "Sorry, haven't the foggiest. I actually haven't seen her all day."
See also: foggy
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.
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