Return the ball again using a forehand
Rather than simply settling for a flat or lobbed ball, it's a great way to overcome an opponent or regain the upper hand in the point. Like a squash shot, the defensive forehand is far from easy to hit and involves quite a lot of risk.
The main idea with this shot is to keep the ball in play when in a defensive position (either when pinned to the back of the court or hitting the ball on the run) and to hit it with a lot of slice and keep it low to the ground.