What is Hill-billy?
1.
Hillary AND Bill Clinton for president, not just Hillary.
John: Who are you voting for?
Sally: I know who I am Not voting for, a Hill-Billy!
John: Great! I am Voting for Obama too!
See
2.
The union of Hillary and Bill Clinton, especially on her campaign trail.
"Hey, what do you think about Hill-Billy's verbal attack on Obama after the first democratic debate?"
"Man, it looks like it's gonna be a two-headed campaign! She is the one running for president, right?!"
See
