The term 'Top-Knotted Doll' refers to a KEWPIE doll, which is a type of doll that was first created in the early 1900s by illustrator Rose O'Neill. The dolls have a distinctive top-knot hairstyle and are usually depicted as having large eyes, rosy cheeks, and a mischievous smile. They are often seen wearing a bow or other clothing accessories. KEWPIE dolls have become popular collectibles and are still produced today.