A bad hairdo is a hairstyle that is considered unattractive or unfashionable. The term can be used to describe a variety of different styles, including the MOP (3 letters), AFRO (4 letters), and shag (4 letters). The MOP is a style characterized by long, straight hair that hangs down over the forehead. An AFRO is a hairstyle with tight curls that are usually worn in a large, round shape. A shag is a layered hairstyle that is usually cut at an angle and has a lot of volume. All three of these styles can be considered bad hairdos if they are not styled properly.