Nat A Damn Yankee is someone from the North who stays in the South
When transferred to Dallas (1983) and meeting new customers, I was always asked where I was from.
My response ....."Virginia"...........their response............."Another damn Yankee".
I tried this answer to being a damn Yankee..........."If I remember my history, Richmond, Virginia was the capitol of the Confederacy."
Their response..........."Well, I guess you are okay."
I later determined their definition of a damn Yankee was anyone from north of the Red River. (Border between Oklahoma and Texas.)