When the weather is so hot (or you are aroused, but usually hot) that you sweat a lot.
Boy: Gee, it's hot out there!
Girl: I know, I'm sweating up a storm!
by uprising1024 December 17, 2011
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A: Hey Tyrese, the 80's called and they'd like their garish tight cycling shorts back.
T: (humps A's leg) Don't be so frigid Alexandrei, SWEAT IT UP
by Peepeeroni February 4, 2017
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