The phrase refers to disguises designed for canines to wear during the annual autumnal celebration. These outfits range from simple accessories like bandanas and hats to elaborate full-body suits mimicking popular characters or objects. For instance, a pet might be adorned as a miniature superhero, a spooky ghost, or even a walking hot dog.
The practice of dressing pets in celebratory attire offers amusement and strengthens the bond between animals and their owners. This activity can also serve as a social opportunity, with pet costume parades and contests becoming increasingly common. Historically, the trend reflects the growing integration of animals into family life and a desire to include them in festive events.