smooth brain

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smooth brain

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Nominalization of smooth-brained, possibly by reference to lissencephaly (a brain abnormality, usually resulting in severe developmental delay, characterized by the surface of the brain being smooth), or simply by reference to the human brain typically being wrinkly.

noun smooth brains · smoothbrain

derogatory, offensive A stupid person. I could not have made it easier for you smooth brains, yet you still messed up!
Similar: alcatote, asshat, arsehole, asshole, bayard, berk, birdbrain, blither, bobchin, bonehead, bozo, buffoon
derogatory, offensive Used other than figuratively or idiomatically: see smooth, brain.

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MLA

"smooth brain." Wiktionary, via Micwyn, micwyn.com/word/smooth%20brain. Accessed 6 Nov. 2026.

APA

smooth brain. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/smooth%20brain

Chicago

"smooth brain." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/smooth%20brain.

BibTeX

@misc{smooth_brain_2026,
  title = {smooth brain},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/smooth%20brain},
  urldate = {2026-11-06}
}