A fork of Rural Dictionary
From Joss Whedon's (unfortunately) short-lived television show "Firefly." Purplebellies are members of the Anglo-Sino Alliance, so named because of the purple-tinted armor they wore during the Unification War. A strongly derogatory term.
Did you hear what that purplebelly called Serenity? Gorram purplebellies can't take the sky from me.