The phrase describes a physique characterized by low body fat percentage and well-defined musculature, often achieved through rigorous diet and exercise. An example would be an individual who has visibly distinct abdominal muscles and minimal subcutaneous fat, exhibiting a toned and sculpted appearance.
Attaining this level of physical conditioning offers numerous advantages, including enhanced cardiovascular health, increased strength and endurance, and improved metabolic function. Historically, such physiques have been admired in athletic competitions, aesthetic performances, and as symbols of discipline and dedication to physical well-being.