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A female condition. When a woman feels both stanky, and fat. Usually around that "time of the month" or just when a woman feels less than desirable.
Mimi: "OMG I feel like such a stankapotamus today...I ate so much at The Bean Barn's bean buffet..."

CiCi: "Oh girl, I feel ya, I'm on the rag and totally feel like a stankapotamus!"
by Crandom Lugosi February 27, 2012