I had a dream that I was sitting in the drivers seat of a car in the night time. There were two girls outside the car. One of the girls had just finished beating the other girl up. The attacker was holding the beaten girls head by my right side tire. She told me that I needed to kill her by running over her head. I told her I wouldn't. Then I ended up killing the attacker. What does this mean?

I don't honestly know.. maybe it means that you will stand up for the people being bullied?. I just had to say that's quite disturbing

Uhm well you might dream about something violent as you don't want to kill the beaten girl but kill the attacker is pretty ironic weird. Maybe you're have sense of kindness and protective however, you still have sense of violation by defending that person.