Scared out of her hair.
Magic is all about deception. In the case of this particular trick, a woman was deceived about whether or not a "magic spider" would make a live appearance on her arm, and she wasn't happy about it. There are a lot of ways to describe how upset she became with the magician, but when a woman literally pulls off her wig and begins beating him with it while screaming, you kind of have to go with "wigged out." Sorry, but rules are rules.
In her defense, she told him not to do that. And then reminded him at least a dozen times.
(by Jonathan Corbett)