1756, probably imitative of the sound made by something brushing against or through something. The noun is from 1820; sense of "effeminate homosexual" is 1930s in homosexual slang, probably from notion of mincing motion.
mod. overly fancy; effeminate; displaying effeminacy. : The lobby of the theater was a little swish, but not offensive.
n. elaborate decoration; effeminacy. : What this place needs is more swish. Hang some baubles here and there.
n. a gay male. (Rude and derogatory.) : This place is full of swishes. Let's leave.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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