café society

noun1

1. •
   Especially from the late-19th century through the mid-20th century in Europe and America, a culture characterized by continual socializing in bistros, coffee shops, and nightclubs, sometimes extravagantly frivolous and sometimes intensely intellectual in nature but always high-spirited.

   • Manhattan café society provokes a lot of writing, most of it about as enduring as a café socialite's hangover. — 1938