noun, masculine/ˌbaros ˈluko/plural: barros lucos
a sandwich made with grilled steak and melted cheese
“El barros luco es un sándwich compuesto de lomo caliente con queso también caliente.” — The Barros Luco is a sandwich made of hot loin with also hot cheese.
After Chilean president Ramón Barros Luco; he would often order a sandwich with this recipe and others would ask for Barros Luco's sandwich, which later came to be known by his name.