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The area to the rear of the human body (sometimes referred to as the gluteus maximus) which lies between 2 imaginary lines running parallel to the ground when a person is standing, the first or top of such line being one-half inch below the top of the vertical cleavage of the nates (i.e., the prominence formed by the muscles running from the back of the hip to the back of the leg) and the second or bottom line being one - half inch above the lowest point of the curvature of the fleshy protuberance ( sometimes referred to as the gluteal fold), and between two imaginary lines, one on each side of the body (the "outside" lines), which outside lines are perpendicular to the ground and to the horizontal lines described above and which perpendicular outside lines pass through the outermost point(s) at which each nate meets the outer side of the leg.