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The female counterpart to the Bro. She is sexually promiscuous, wears ugg boots, leggings and a North Face. She gets drunk and shouts things like "I don't give a FUCK who's sleeping!" The term originated from the magnitude of skanks living in the Southwest Residential Area of Umass Amherst. But living in Southwest is neither necessary nor sufficient for someone to be considered a Swesty.
I'm not wearing your north face, it makes me look like a Swesty.
by EB<3 October 24, 2010
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someone intelligent, witty, humorous, and fun to be around
He's such a swesty.
Did you see that person?. he's so swesty.
by Julie February 25, 2005
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