The phrase refers to concepts for attire worn on All Hallows’ Eve, drawing inspiration from the fashions and cultural trends prevalent during the 1920s. These could include flapper dresses, gangster suits, silent film star looks, or interpretations of archetypes popular in that era.
The appeal lies in the era’s distinctive aesthetic, characterized by Art Deco design, jazz music, and social change. Recreating these garments for festive occasions provides an opportunity to engage with a specific and well-defined moment in history, offering a visually striking and culturally resonant experience.