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1.
1. Of, relating to, or metaphorically resembling the perineum ("taint").

2. Esoteric; hard to discern.

3. Not black-and-white or cut-and-dry, but rather consisting of multiple different sides, perhaps to the point of nausea, confusion, or frustration.
1. "That guy's bald head is so...perineumic!" LMAO

2. "Professor, could you be just a bit less perineumic when explaining the complexities of quantum-mechanical theories to us?"
by William T. Morgan (II) May 14, 2006