The phrase denotes a specific ensemble inspired by a character named Mary, within the context of the Disney film Hocus Pocus, typically worn during Halloween celebrations. It refers to attire designed to replicate the appearance of the character, often including a burgundy dress, styled wig, and distinctive makeup. Such an outfit serves as a means of expressing fandom and participating in the traditions of the holiday.
The popularity of dressing as this character stems from the films enduring appeal and its association with the Halloween season. The character, as part of a trio of witches, provides a recognizable and engaging figure for individuals seeking a thematic and nostalgic costume choice. The act of embodying the character offers a connection to a broader cultural phenomenon and allows individuals to participate in communal enjoyment of the film.