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Hygienically challenged, usually overweight, people can develop a residue of body secretions on their person, typically in compressed areas of the body described as "folds". It can also accumulate in the groin. This filmy substance has a distinct and unpleasant odor. Like crap.
I would go on a date with Tina, but damn she smells like flap crap. I don't want to get that stuff on my hands.

I gave Cortney a lift home, now my whole car smells like flap crap.
by WillieWonka12 January 30, 2010
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