in full fig

in full fig

Dressed in fancy or extravagant clothing and accessories. All of a sudden, a group of actors from the musical boarded the train in full fig and began leading the passengers in a rousing rendition of the show's biggest numbers. For her wedding, the bride was dressed like a Disney princess in full fig.
See also: fig, full
Farlex Dictionary of Idioms.

in full fig

wearing the smart clothes appropriate for an event or occasion. informal
Fig in the sense of ‘dress or equipment’ is now used only in this phrase, which was first recorded in the mid 19th century.
See also: fig, full
Farlex Partner Idioms Dictionary
See also:
  • give (one) the fig
  • glitz
  • go to one's head, to
  • fall for something/someone, to
  • leaves
  • set one's teeth on edge, to
  • take by storm, to
  • no expense is spared
  • spare no expense
  • spare no expense/pains/trouble doing something
References in classic literature
The Gardens are a tremendous big place, with millions and hundreds of trees, and first you come to the Figs, but you scorn to loiter there, for the Figs is the resort of superior little persons, who are forbidden to mix with the commonalty, and is so named, according to legend, because they dress in full fig. These dainty ones are themselves contemptuously called Figs by David and other heroes, and you have a key to the manners and customs of this dandiacal section of the Gardens when I tell you that cricket is called crickets here.