Oven stuffer roaster is a term commonly used to describe a type of chicken that is bred to be larger than average. When it comes to synonyms, there are a few options that can be used interchangeably. One term is "roasting chicken," which refers to any chicken that is suitable for roasting in the oven. Another option is "baking hen," which is a term that is commonly used for older chickens that are best suited for slow cooking. Additionally, "game hen" can be used to describe smaller, younger chickens that are typically served as individual portions. Regardless of the specific term, the key takeaway is that these chickens are great for roasting or baking and make for a flavorful and satisfying meal.