A muffler is another term used for a scarf that is used as a wrap around the neck. Muffler is a term used for a warm piece of material used as a scarf, used mainly to keep warm. Although used around the neck primarily, it can also be used around the head, the waist for additional warmth or even for religious reasons. They are available in various colours and materials depending on what it is intended to be used for. Mufflers are often teamed with jackets, caps or a warm hat as complete attire for protection from the cold.