This is what I got after some research on the net.
Automotive doors that hinge from the rear edge of the door instead of the leading edge. They acquired the "suicide" nickname due to the fact that if the door was not fully closed and the occupant tried to open and reclose the door while the car was moving (which for some reason was once common practice), the rushing air would catch the door and pull it open violently, often pulling the person still holding the door handle out of the car.
Now that can happen and the probability is more than a conventional door.