From WordNet (r) 2.0 (August 2003) [wn]:
Dixie
n 1: the southern states that seceded from the United States in
1861 [syn: Confederacy, Confederate States,
Confederate States of America, South, Dixie,
Dixieland]
2: a large metal pot (12 gallon camp kettle) for cooking; used
in military camps
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Dixie \Dix"ie\ (d[i^]ks"[y^]), prop. n.
1. A colloquial name for the Southern portion of the United
States, esp. during the Civil War. [U.S.]
Syn: Dixieland, Dixie Land, the Confederacy, Confederate
States of America, the South.
Syn: . [1913 Webster]
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.
[PJC]
whistle Dixie to talk unrealistically; to engage in
unrealistic or overoptimistic fantasies; as, that ain't
just whistlin' Dixie.
[PJC]