The dirty Dr. Pepper is when you have gotten tired of using regular dildos, so you start to use a 16.9 FL OZ Dr. Pepper bottle as your dildo. While using the dildo you somehow accidentally unscrew the bottle causing the Dr. Pepper to spill in to your p*ssy or *ss. After the Dr. Pepper spills in you it starts to burn and you ask your best friend to help you and they say to pour milk into the hole to ease the burning. The next day while sh*tting/peeing you start peeing out Dr. Pepper and Milk.

When someone thinks they are the main character of their life. Usually comes with a side of individuality complex, quirky style and a self centered point of view.