Teenage girls can be a diverse group with varying interests and preferences, so it's challenging to provide a universal answer to what they want for Christmas. However, some popular gift ideas for teenage girls could include the latest fashion items, trendy accessories, beauty products, electronics such as smartphones or laptops, and gift cards for shopping at their favorite stores. It's also important to consider their hobbies and passions, such as music or sports, and gift them with items related to those interests. Ultimately, the best way to find out what a particular teenage girl wants for Christmas is to listen to her and pay attention to her interests and preferences.