I think I spent most of the dream on a long bus ride, all of which I can't really remember except the end. As I was getting off the bus, some girl (who I can only remember as a girl I disliked) began using a taser to shock me repeatedly. She wouldn't stop, so I somehow managed to walk over to her and grab her neck, causing the current to flow through her body just like mine. Then I woke up.
I think this dream has something to do with karma. Since this girl took the first action against you by using the taser, this means that you hold anger against this person for wronging you in some manner. The fact that you retaliated immediately shows your impulsive nature. Instead of trying to flee the situation and stop the shocks, you chose to fight and risk continuing getting tasered.
I think the underlying message in this dream is that you should learn to carefully evaluate situations and allow karma to handle any revenge that you are currently seeking.