An unruly lock or section of hair that sticks straight out from the skull or lies at an angle at odds with the rest of an individual's hair, like a whorl or vortex.
A head of real or synthetic hair worn on the head to disguise baldness, for cultural or religious reasons, for fashion, or by actors to help them better resemble the character they are portraying.
A bigwig
To put on a wig; to provide with a wig (especially of an actor etc.).
To upbraid, reprimand.
To act in an extremely emotional way; to be overly excited, irritable, nervous, or fearful; behave erratically.
To shoot in the head.