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smooth brain

What does smooth brain mean?

A self-deprecating or insulting term (a brain with no wrinkles) for someone who lacks knowledge or made a dumb move.

"Smooth-brain move: I sent it to the wrong network."

Origin

Meme referencing brain wrinkles as intelligence; opposite of gigabrain.

Frequently asked questions

What does smooth brain mean?
Smooth brain describes someone who lacks understanding or made a foolish move, joking that their brain has no wrinkles. It's used both as an insult and self-deprecatingly.
Why is it called smooth brain?
The meme plays on the false idea that more brain wrinkles mean more intelligence, so a "smooth" brain with no folds implies stupidity.
What's the opposite of smooth brain?
The opposite is "gigabrain" (or "galaxy brain"), which praises exceptional insight or intelligence.
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Slang definitions: FreeDict original editorial.