Low rise jeans that are too tight and make your hips look square/non-existent.
Pants with writing on the butt.
Pastel sweat suits
Small shirts on large girls, especially when it makes you wonder if a 12 year old is pregnant or just has an enormous gut.
Super short SHORT shorts, especially on a girl with no butt or a cottage cheese butt/thigh combo
Ill-fitting clothes, in general. (Anyone know why Old Navy only sells jeans in even sizes? I blame them for all the young girls walking around the mall in ill-fitting clothes. I am NOT a 4. I am NOT a 6. I am a 5, gosh darnit!)