Webster's Revised Unabridged Dictionary · 1913

Dixie

Dixie (diks"y) , proper noun

1.
A colloquial name for the Southern portion of the United States, esp. during the Civil War. [United States]
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.
Collocations (1)
whistle Dixie , to talk unrealistically; to engage in unrealistic or overoptimistic fantasies; as, that ain't just whistlin' Dixie.