Vanity Fair
noun
(in Bunyan's Pilgrim's Progress) a fair that goes on perpetually in the town of Vanity and symbolizes worldly ostentation and frivolity.
(often lowercase)
any place or group, as the world or fashionable society, characterized by or displaying a preoccupation with idle pleasures or ostentation.
(italics)
a novel (1847–48) by Thackeray.
British Dictionary definitions for vanity fair
Vanity Fair
noun
(often not capitals) literary
the social life of a community, esp of a great city, or the world in general, considered as symbolizing worldly frivolity
Word Origin for Vanity Fair
from Bunyan's
The Pilgrim's Progress