Dunk bread quickly in milk and press the liquid out to dampen the bread.
Combine the beef, bread, onion, garlic, oregano, mint, vinegar, eggs, nutmeg, salt, and pepper in a bowl and mix well. Take a large spoon of the mixture and roll into a ball until all the mixture has been rolled.
In a saute pan, add the olive oil and bring it to 360-degrees F for frying. Dust the balls in flour and add to the oil. Brown on all sides, leaving room in the pan to roll them around. Pull from the pan and drain on paper towels.