a person employed to transact business outside an office, especially on behalf of one whose responsibilities require his or her presence in the office.
2.
Journalism. a reporter who gathers information by visiting news sources or by being present at news events.
A newspaper reporter who goes out to gather facts and may or may not write the story (1923+ Newspaper office)
Any person who works actively and outside, rather than in, an office (1950s+)
A man whose favorite part of the female body is the legs (1940s+)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source