Someone who comes from the small East Texas town of Nacogdoches but is trashy. Nac Rats get drunk and start stuff, they never really leave, and they're low class.
Guy 1: Did you see that guy? He's so hillbilly.

Guy 2: Don't mind him, he's a Nac Rat. It's what they do.
by Dragonclaw01 April 18, 2019
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