A girl that has a very bold attitude, and likes to be better than everyone else. They are typically very loud, and can be annoying at times. They usually want to sit in the front of the school bus, during middle school.
Student: Hey, who is that girl that is jumping up and down and screaming?
A severe disorder of the breast tissue suffered by maturing teens. Similar to nipple rock, where the glands grow at an exponential rate. You are advised to contact a medical professional immediately if you or anyone you love is suffering from puffy teen nips.
Person 1: "yo I'm gonna hop in the pool. Come in with me! *takes off shirt*"
Person 2: "Oh my fuck someone call an ambulance. This adolescent has puffyteennips!!!"