When someone is so predictable you see what's comming.
Based on the rabbit in the hat trick; the rabbit actually moves down the sleeve into the hat. If the Magician has short sleeves, you see the rabbit.
Person 2: Typical Dan, what a short sleeved magician.
Craig: "Well, we all know Jeff has commitment issues. But just for fun... what did he decide?"
Dan: "What do you think? He decided not to."
Craig: "Oh Dan. He's such a short-sleeved magician."
Demetri: "Oh Yea? Thats a short sleeved magician, you know you won't be getting that back"