The definition of a hillbilly is someone who comes from a remote area with woods, hills or mountains.
An example of a hillbilly is the character Jethro from the Beverly Hillbillies TV show.
a person who lives in or comes from the mountains or backwoods of the South, esp. from the Appalachian areas of the South: often a contemptuous term
Origin of hillbillyhill + Billy, diminutive of Bill
of or characteristic of hillbillies: hillbilly music
nounpl. hill·bil·lies Often Offensive
A person from the backwoods or a remote mountain area.
Origin of hillbillyhill + Billy, a nickname for William.