noun `Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback' derived from their grey Confederate uniforms
noun a person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions)
noun someone who exhibits great independence in thought and action
Synonymsmaverick
verb break with established customs
Synonymsrenegade
Source: WordNet 3.1, Princeton University
