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Inbred.

When "Kin" folk be "wallerin" around (engaging in sexual activity resulting in an inbred pregnancy/birth)
Janie: Dave look at that mother fuckin' kinwaller.

Dave: What the fuck is a kinwaller?

Janie: You know on of those banjo-playin'-squeal-like-a-pig sister fuckers.

Dave: Ohhhh when you bone your sister and have a kid.

Janie: Yeah, pretty much.
by EauDeJane May 22, 2009
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