Top Definition
Interchangeable with: Metro Sweats and Underground Sweats.

When the temperature of the subway is so vastly different from the winter temperatures outside and you immediately break into an uncomfortably uncontrollable sweat in your winter clothes.
"Man it was so bloody cold I got all layered up to leave the house and then I got such unrelenting subway sweats within minutes."
by metroSweater December 22, 2013

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