The phrase references a localized Halloween activity, typically involving individuals decorating the trunks of their vehicles and distributing candy to children. This provides a concentrated trick-or-treating experience often held in parking lots or similar communal areas, designed for enhanced safety and accessibility.
These events offer a secure alternative to traditional door-to-door trick-or-treating, particularly beneficial for families with young children or those residing in areas with limited pedestrian access. Historically, such gatherings have emerged as community-building initiatives, fostering social interaction and providing a controlled environment for celebrating Halloween.