mod. stupid; mindless. (Taboo. Usually objectionable.) : What a stupid, fuck-brained idea!
mod. obsessed with sex. (Taboo. Usually objectionable.) : All he thinks about is dames. He is totally fuck-brained.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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