The phrase identifies a specific subset of celebratory attire: ensembles designed for two individuals to wear in tandem during the Halloween season of a particular year. An example includes a pairing of a “plug” and “socket” outfit where two people dress as the respective parts of an electrical outlet.
Understanding this topic is valuable for those seeking coordinated and thematically linked outfits for social gatherings. Historically, the practice of couples coordinating their attire for Halloween has offered a way to express shared interests, humor, or cultural references. It further provides an opportunity for creative expression and collaborative participation in the holiday.