hillbilly

Short definition from Wiktionary

Noun

1. 1
   Someone who is from the hills; especially from a rural area, with a connotation of a lack of refinement or sophistication.
2. 2
   A white person from the rural southern part of the United States, especially the Southeastern states.

Verb

1. 1
   To emphasize one's rural or humble upbringing; to use unsophisticated charm.
2. 2
   To portray or act as an uneducated and unsophisticated fool.
3. 3
   To perform or experience stereotypically hillbilly-like actions.