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"In modern hog husbandry, artificial insemination is widely practiced. To determine which sows are in heat, farmers use a swine, known as a sidewinder, whose penis has been surgically diverted to the side. Where the penis would normally be is a marker. When the farmer finds a sow whose butt has been scribbled on, he knows she is in heat. If your penis sticks out to the side, you might adopt this way of belting your trousers. Or this practice may simply be an affectation, as I assume it was with Elvis. It is, literally, an eccentricity."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.gq.com/story/belt-buckle-of-center-elvis>