The phrase refers to costume choices that blend elements of the horror film series, primarily featuring the character Jason Voorhees and the themes associated with Friday the 13th, with the tradition of dressing up for Halloween. These ensembles often incorporate hockey masks, tattered clothing, and simulated weaponry to evoke the iconic slasher image, suitable for Halloween festivities.
Such thematic attire provides a unique and recognizable option for Halloween celebrations, drawing upon a well-established and culturally significant horror franchise. The visual impact and widespread recognition of the character and associated imagery contribute to its popularity as a costume choice. This approach to Halloween dressing offers a distinct alternative to more conventional or whimsical themes.