The phrase references a vampire Halloween costume. It denotes an outfit intended to replicate the appearance of a vampire, often worn on October 31st. Examples would include ensembles incorporating elements such as capes, fangs, pale makeup, and gothic-inspired clothing to create a vampiric aesthetic.
This specific type of attire holds significance during the Halloween season, providing individuals with a tangible means of embodying a classic monster archetype. Its popularity reflects a long-standing cultural fascination with vampires, stemming from folklore, literature, and cinema. The use of such costumes allows for creative expression and participation in the celebratory atmosphere associated with the holiday.