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A redneck slut or "hood-rat" commonly found at mudfests around the south. The kind of girls that would show their tits for beads, or get drunk and hook up with some random redneck guy. In most cases, if you have a big truck, swamp scallys will be all over you.
Jimbo's buggy was FULL of swamp scallys at Myakka Mudfest!
by MightyWhitey September 13, 2009