The phrase identifies a commercially available costume, typically sold at a seasonal retail outlet specializing in Halloween-related merchandise. It represents a themed outfit drawing inspiration from a literary character known for eccentricity and association with tea parties. As a compound noun, it specifically refers to a product within a particular brand’s catalog.
The availability of such items offers convenience for individuals seeking readily accessible Halloween attire. Its existence highlights the commodification of popular culture and literary figures for celebratory purposes. The costume also reflects a broader trend of themed parties and events where participants are encouraged to dress in character.