Birdbrain

Pronunciation

• UK IPA: /ˈbɜː(ɹ)d.bɹeɪn/
• US IPA: /ˈbÉšd.bɹeɪn/

Origin

From the compound bird + brain, implying that the brains of birds are small.

Full definition of birdbrain

Noun

1. Someone who is not very smart or clever.That birdbrain just drove right through three rows of traffic cones and into the bushes.