1
general::
Phrase(s): man about town
a fashionable man who leads a sophisticated life. • He prefers a nightclub to a quiet night at home—a man about town. • Bob’s too much of a man about town to go to a football game.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
A man who frequently attends fashionable social functions, as in Fred is quite the man about town these days. This expression, first recorded in 1734, uses town in the sense of "a sophisticated place" as opposed to rural settings.
American Heritage Idioms