a few bananas short of a bunch

A derogatory phrase meaning not very intelligent or of questionable mental capacity. He says he's going to start a business selling bees as pets—I think he may be a few bananas short of a bunch. Every time Paul tells me about his latest conspiracy theory, I can't help thinking that he's a few bananas short of a bunch. Tommy's a few bananas short of a bunch if he thinks he can convince our mother to let him get a tattoo for his birthday.

See also: bananas, bunch, few, of, short

See also:

a/one beer short of a six-pack
one egg short of an omelet
sixpack
foundry
nuthouse

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