Means u step on the accelerator while pressing the clutch to
about 4 - 6k revs then u release the clutch fast, this should cause
the front or rear wheel tires to lose traction and wheelspin. It
has to be done right for the car to launch at its fastest. Too much
rev will cause too much wheelspin.
This is not for a 4WD though, too much stress on the
drivetrain.
Not too sure about auto cars but I did hear of using the brake and
accelerator, but replacing it trans should something go wong will
cause u a big bomb of cash. (P/s reving in Neutral and dropping to
drive will also cause damage)