noun.
Someone who is from the hills; especially from a rural area, with a connotation of a lack of refinement or sophistication.
noun.
A white person from the rural southern part of the United States.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a disparaging term for an unsophisticated person
Word Usage
"In a party that worships the likes of Sarah Palin and Michelle Bachman, and speaks with the voices of Rush Limbaugh and Glenn Beck, this hillbilly is actually part of the “mainstream”."