Definitions for "Call Girl"
A high-priced prostitute who usually works outcall from a home or office as opposed to getting customers on the street or at a brothel.
a female prostitute who can be hired by telephone
One who represents the upper end of the economic scale of prostitution by catering to a more affluent customer and generally making arrangements over the telephone. Since call girls do not actually walk the streets, their activities are not visible to either the public or the police.