[Number three occurs when Shaq, holding the ball, makes a quick pivot or simply turns to the basket and rams into his opponent's...what? Head? Shoulder? Jaw?] If you're guarding Shaquille, you try to lower your center of gravity, ... So when Shaq comes across with his elbows, a player such as Dikembe has his face right there. If Shaq threw an elbow way out, you'd say it was an obvious foul. But it's within his offensive move, and that makes it difficult to officiate.
— Steve Jones
BallBasketHolding