The phrase refers to family costumes for the Halloween holiday. It encompasses the idea of coordinated or themed outfits worn by multiple family members for trick-or-treating, parties, or other celebratory events. An example would be a family dressing as characters from a popular movie or as variations on a single profession, such as a family of doctors and nurses.
The selection and creation of coordinated Halloween attire fosters family bonding and shared experiences. This collaborative activity encourages creativity, communication, and decision-making among family members. Historically, costume-wearing on Halloween has roots in ancient Celtic traditions meant to ward off evil spirits, evolving over time into a contemporary expression of fun and imagination.