balls to the wall

Where does the expression "balls to the wall" come from? The expression "balls to the wall" comes from a small winter festival called dark mofo held on the remote island of Tasmania, one events at this festival is called blacklist, there is a small group of very unique people who take mdma in amounts that large they are measured in kilos while pushing there bodies to new found limits over two weekends cutting chemically enhanced shapes to some of the worlds finest music, if this wasnt enough there is a light show which kills more brain cells than a direct shot of a 12 gauge shot gun to the head This is all made possible but the biggest cooked lad in the world "David Walsh"