birdbrain

[ burd-breyn ]
/ ˈbɜrdˌbreɪn /

noun Slang.

a stupid, foolish, or scatterbrained person.

Origin of birdbrain

First recorded in 1920–25; bird + brain
Related formsbird·brained, bird-brained, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for bird-brain

bird-brain


n.

also birdbrain, 1936, slang, "stupid person," also perhaps suggestive of flightiness, from bird (n.1) + brain (n.).

Online Etymology Dictionary, © 2010 Douglas Harper