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have bats in belfry

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have bats in one's belfry

Inf. Fig. to be crazy. You must really have bats in your belfry if you think I'll put up with that kind of stuff. Pay no attention to her. She has bats in her belfry.

See also: bats, belfry, have

have bats in (one's) belfry

To behave in an eccentric, bizarre manner.

See also: bats, belfry, have