Simple Definition:

A hillbilly refers to a person who lives in a rural [relating to the countryside] area, often in the mountains or hills. They typically have a simple and rustic [simple and old fashoned, or typical of the countryside] lifestyle and may have traditions and dialects [local forms of language] specific to their region.

Examples:

• My grandparents are hillbillies because they live in a small cabin in the mountains.
• The hillbillies in that region have a unique way of speaking.

Very Simple Definition:

A hillbilly is a person who lives in the countryside and has a simple lifestyle.

Examples:

• Hillbillies enjoy spending time outdoors.
• The hillbillies in that area have a unique way of speaking.