Cab Man or Cabman is a racist term(usually used in Baltimore) to describe a person of Eastern Indian or Middle Eastern descent due to the fact that they are commonly cab drivers. Even if the person isn't a cab drive, he can still be called a cab man.
Jamal - "In class I sit by a cab man"
Ezra - "What? Is he a cab driver?"
Jamal - "No he just an Indian/Middle Eastern person"