Dixie /(dĭks"y̆)/

Dix·ie

Dixie

prop. n.
  1. A colloquial name for the Southern portion of the United States, esp. during the Civil War. [U.S.]
  2. a song popular in the Confederate states during the American Civil War, and still played as a nostalgic anthem by those patriotic to the American south. It was written by Daniel D. Emmett in 1859.

Phrases & Compounds
whistle Dixie
to talk unrealistically; to engage in unrealistic or overoptimistic fantasies; as, that ain't just whistlin' Dixie.