cookie cutter chick
The a-typical middle or high school girl that you don't want lend your sweatshirt to in fear of not getting it back. They try to be like every other girl in their school and become like them and typically wear yoga pants and white converses. Essentially how they appear on the outside doesn't differ much from other girls almost making them look like they were made from cookie cutters, hence the name cookie cutter chick. Look up thot for a wider reference.
Man, she is such a cookie cutter chick. Get yourself a unique girl.