To perform an overhead squat with a snatch grip, start by standing with your feet shoulder-width apart and holding the barbell overhead with a wide grip. Keep your arms fully extended and your core engaged. Squat down by bending at the hips and knees, keeping the barbell stable and your back straight. Lower until your thighs are parallel to the ground or lower, then push through your heels to return to the starting position. Focus on maintaining balance and proper form throughout the movement.