A person who seeks sexual and/or emotional intimacy with a cowboy from the Rodeo circuit.
Ennis Del Mar: Y'all seen Jack? He was supposed to meet me a half hour ago.
Rodeo Clown: Shoot, Jack left for the hotel with a Buckle Buddy and a bottle of whiskey. I think he's gonna get ridden harder than the bull did! Eeeeweeee! I tell you whut!