A teenybopper is a term used to describe a young girl who is really interested in pop culture, especially music and celebrities. It's like when you really love a certain singer or band and you listen to their songs all the time, learn all the lyrics, and buy posters of them to hang in your room. Teenyboppers are also known for their fashion choices, which often include bright colors, fun patterns, and accessories like oversized bows or jewelry. Basically, it's just a way of saying that someone is really enthusiastic about the things they like when they're a teenager.