Wiktionary
n. A Uruguayan sandwich made with filet mignon, mozzarella, tomatoes, mayonnaise, olives, eggs, etc.
Wikipedia
Chivito (the diminutive of chivo, goat) is the grilled meat of a young goat eaten in Argentina, sometimes as part of an asado. Chivito differs from cabrito in that chivito is a slightly older animal with whose meat is less tender. A chivito has already begun to eat solid foods, whereas the cabrito is still a suckling.
The chivito is less gamey and has a more delicate flavour than the adult goat. It can be cooked a la parrilla ( grilled) or a la cruz. In the chivito a la cruz, the chivito is set vertically on a cross which is nailed to the ground near the fire, giving it a special flavour.
Every summer, a Chivito Festival is held in the town of Malargüe in the province of Mendoza, Argentina.
Chivito is also the name of the Uruguayan sandwich made with beef, not goat. This sandwich comes in many varieties and is very popular in Uruguay. It can be served with egg, bacon, ham, lettuce, tomato, onions, mayonnaise and many other ingredients.
Chivito is the name of a sandwich-style national dish in Uruguay, and consists primarily of a thin slice of filet mignon ( churrasco beef), with mozzarella, tomatoes, mayonnaise, black or green olives, and commonly also bacon, fried or hard-boiled eggs and ham. It is served in a bun, often with a side of French fries. Other ingredients might be added into the sandwich such as red beets, peas, grilled or pan-fried red peppers, and slices of cucumber.