IdiomAnimalsPolish

ptasi móżdżek

Meaning: A stupid or scatterbrained person.

Literally: Bird's brain

Example: “Tylko ptasi móżdżek zostawiłby kluczyki w samochodzie.” — Only a bird-brain would leave the keys in the car.

English equivalent: A bird-brain

Equivalents in other languages

Origin: Birds have small heads and, it was assumed, small brains, so a bird's little brain is a stupid or scatterbrained mind. Polish Wiktionary marks the phrase as colloquial and ironic, and English "birdbrain" works the same way.

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