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2.
The defining word of a person whom steals the significant other from someone else only so the "car Jacker" can be with the person whom was stolen. Find a person whom you, the car jacker, want to be with, then procced to "steal" that person from the one whom they are already engaged in a relationship with, causing them to break up and then moving in to build a relationship with the person the car jacker choose to steal.
That duche bag Chris is such a car jacker, he stole my girl right out of my arms!!
by The infamous car jacker Dave February 26, 2010
 
1.
used mostly for someone giving a handjob while riding in a car
Man jennifer is such a car jacker! Did you hear about her carride with will last year?