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1.
A female who has facial hair on her upper lip and/or cheeks that cannot be easily seen in the dark, but is very exposed in the light. Therefore, when she must dwell in the shadows in order to hide her facial hair.
Person 1: Izzy has a serious mustache.
Person 2: I haven't really noticed.
Person 1: That is because she is a shadow dweller. It must have been a dark room when you saw her. Check it out next time you see her.
by Ryan, Jim, Tom, and Pooky December 10, 2006