not have a clue

1. Have no idea or inkling about something, as in Jane doesn't have a clue as to why John won't call her, or Do you know what's wrong with the boiler?—No, I haven't a clue. This usage was first recorded in 1928.

Example Sentences

He said he did not have "a clue" what he had done on the night of 27 September as it was a month before, but added he "didn't do much" and would either have been at home or with a friend or his girlfriend, who he referred to as his "bird".

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Asked about that finding, Welby said: "You can believe it or not, I did not have a clue."

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I really do not have a clue how this one will go, so I suppose the sensible thing for me to go for is a draw,

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It'd be silly to go through life and not have a clue about that guy, 'cause he's just one of those people.

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“Eric Hovde does not have a clue what he’s talking about,” she said on MSNBC.

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