not have the slightest idea

not have the slightest idea

To not be aware of or know more information about something. A: "Is Sally off today?" B: "Oh, I don't have the slightest idea. Ask Elaine, she'll know."
See also: have, idea, not, slight
References in periodicals archive ?
They do not have the slightest idea of what lies beyond the windows of the bus.
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