have bats in one's belfry
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have bats in one's belfry
Where it comes from
1899, from tendency of bats to fly around erratically, with “belfry” indicating “head, mind”.
verb has bats in one's belfry · having bats in one's belfry · had bats in one's belfry · have bats in the belfry
- To be crazy or eccentric. Anyone declaring himself Emperor of San Francisco probably had bats in his belfry.
