The phrase in question identifies a specific category of attire chosen for the Halloween holiday, limited to those whose names commence with the letter “M.” Examples include, but are not limited to, a mummy, a magician, or a musketeer. These selections represent a small fraction of the possible disguises available for festive occasions.
The appeal of costumes beginning with this letter lies in the variety they offer, ranging from classic horror archetypes to more whimsical or heroic figures. Their selection allows individuals to express creativity and participate in the spirit of Halloween. Exploring such options provides a defined subset for inspiration and themed events.