grillbilly /ɡɹɪlˈbɪ.li/ noun1 •(informal, slang) Someone whose grill is the nicest thing about their house.Lindenfelser said two years is a good landmark to celebrate, but if all goes well next week, he may bring the event – which he’s calling Grillbilly Days – back every year. — 2022 formsgrillbillies