noun. A sophisticated, socially active man who frequents fashionable places.

noun. One who frequents a boulevard, especially in Paris.

noun. A frequenter of a city boulevard, esp. in Paris.

noun. A man who frequents the boulevards; thus, a man about town or bon vivant.

noun. a visitor of a city boulevard (especially in Paris)

"My Merriam-Webster 11th Edition, the standard medium-size 'Merkin dictionary, has "boulevardier" as showing up in 1871 as "a frequenter of the Parisian boulevards, broadly: MAN-ABOUT-TOWN"."

visitant  visitor  

mall rat