pom-pom

a rapid-firing automatic weapon, especially a cannon used in the Boer War or a double-barreled antiaircraft gun used in World War II

a cheerleader's accessory in the form of a large white or brightly colored ball-shaped mass of thin paper or plastic strips connected to a handle

a small tufted ball made from wool, silk, or other material, attached as a decoration to hats, shoes, and other articles of clothing