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Someone who develops extreme hermit-like, anti-social tendencies due to cold and or snow. Wintroverts tend to be social during nice weather so the prolonged shut-in behavior is seasonal more than typical.
Sarah: Hey, we should go grab a post-holiday cocktail soon.
Ken: I would but I become such a wintrovert this time of year. See ya in the spring.
by Sarah G January 11, 2017
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