The term "Balls out"
There was a very interesting show on Speed Channel last night about Jay Leno's build of his Ecojet turbine-powered car. At the end of the show it showed some of the things he's planning to use to make his Big Dog Garage totally 'green' and off the power grid. One of them is an old steam engine and he discussed the same 'balls out' topic.
Take a look at the show if you get a chance.