Noun. The male head of a hillbilly clan. Since the family tree usually resembles a tumbleweed, he's 'grandpaw' to some of the young'uns, 'uncle' to others, and 'daddy' to others.
Grandpaw/Uncle/Daddy; in short: Grunkledy.
"Het up off'n yore sister, Billy-Joe-Jim-Bo-Bob! Y'ol' Grunkledy he's a-comin' this-a-way!