What is the definition of "carrot top"?

There are two definitions for the term carrot top, both signifying a nickname. The first meaning is the stand-up comedian who uses the stage name of Carrot Top. This moniker also refers to any person with red hair.

The comedian known as Carrot Top was born in Rockledge, Florida, and began performing when he was just a freshman at Florida Atlantic University. Carrot Top is a well-known comedian who has appeared in a variety of TV shows and movies such as "George Lopez," "Space Ghost Coast to Coast," "Scrubs," "Dennis the Menace Strikes Again," "Family Guy," "The Aristocrats," "Chairman of the Board" and many more. He has bright red hair, hence the stage name.