Muscle shocking is a technique to boost muscle growth. It involves working the muscles in a way different from the athlete's regular training. Shocking programs are to be used sparingly (no more than once every other week) or they will not have a great an effect.

Drop Sets
Begin lifting a weight that is some where around 80% of your max. Lift that weight until failure, and then immediately lower the weight and begin lifting again to failure. Continue the process until you get down to only about 25% of your max.

Partial Rep
Use about the same amount of weight that you would ordinarily use for the particular exercise you are doing. Begin by performing the entire motion for the exercise. Then only go 3/4 of the way up (or down), then reduce your motion again to 1/2 and eventually 1/4.

Rest-Pause
Lifting a weight that is a little heavier than you would ordinarily use, lift it to the point in the motion where it is the heaviest and hold that position for a couple seconds. Then go finish the motion the rest of the way and do the same for all the reps in your set.

It there is anything remotely close to a miracle training technique, shocking would have to be it.