What does the term 'beefy' describe in a dog?

The term 'beefy' in describing a dog typically refers to the appearance of being muscular and robust, particularly reflecting a strong development of the hindquarters. This description indicates that the dog possesses a solid, powerful build with well-defined muscle mass, especially in the rear. Such physical characteristics suggest strength and can often be desirable in certain breeds that are meant to have a more substantial and athletic structure.

While some options pertain to different aspects of a dog's physical appearance, 'beefy' specifically focuses on a heavily muscled constitution, distinguishing it from descriptions of being under-weight, thin, or balanced, which do not convey the same emphasis on bulk and musculature. This makes the understanding of the term particularly relevant in the context of assessing a dog's conformation or suitability for activities that require strength and endurance.