noun 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.
noun A bigwig.
noun An old seal.
verb To put on a wig; to provide with a wig (especially of an actor etc.).
verb To upbraid, reprimand.
verb To act in an extremely emotional way; to be overly excited, irritable, nervous, or fearful; behave erratically.