bats in the belfry
01
an unconventional or unique behavior that is often considered crazy, risky, or confusing
Dialect
American
American
Disapproving
Idiom
Informal
Exempel
I think he has bats in the belfry, as he believes in conspiracy theories and behaves oddly.
If she keeps coming up with unconventional ideas, people might think she has bats in the belfry, but sometimes innovation requires thinking outside the box.
