fancy dressfancy dress
A masquerade costume.
(usually uncountable, plural fancy dresses)
- attributive form of fancy dress, noun.
- What are you wearing to the fancy-dress ball?
- In the spring there was a fancy-dress ball at Buckingham Palace, which remained memorable owing to the offence loyal members of the Southampton Corporation remem sorebered Raleigh, and spread their robes on the ground reigns.