The phrase identifies attire intended to replicate the appearance of a specific character, Rhaenyra Targaryen, from the House of the Dragon television series, specifically for the holiday of Halloween. An example would be purchasing or creating a gown and wig styled after the character’s usual presentation in the show for celebratory All Hallow’s Eve festivities.
The popularity of character-based ensembles for Halloween demonstrates the pervasive influence of contemporary media on cultural trends. Such choices offer opportunities for individuals to express their fandom, engage in creative self-expression through costume design, and participate in shared recognition and appreciation within a community familiar with the source material. Furthermore, the selection reflects current popular narratives and media consumption habits.