Is it? If you hit the post it's not on target is it? The ball has to have been going in and saved for it to be on target doesn't it?
Yes. It was just a joke. Definitions vary slightly but the OPTA one is -
Shot on target
Any goal attempt that:
a) Goes into the net
b) Would have gone into the net but for being stopped by a goalkeeper's save
c) Would have gone into the net but for being stopped by a defender who is the last man.
Shot off target
Any goal attempt where the ball is going wide of the target, misses the goal or hits the woodwork.
Not exactly clear is it?