A girl with an extremely hairy body, specifically the face and/or armpits. A Hairy Mary is also a woman who has an extremely hairy ass. Be warned. Hairy Marys tend to travel in packs and occasionally think that is okay to publicly expose themselves by wearing tanktops.
On first sight it looked as though Katrina's hair was flowing over her shoulder. She then tossed her hair back, exposing herself as a Hairy Mary, and displayed her beautiful armpit hair.
by [TaintSniff] December 10, 2008