First master the behind-the-back pass. After you become proficient, do the behind-the-back pass with one hand and lift it slightly higher. Use the lower end of the upper arm of the other hand (the elbow is just a little higher, please note that it is not the elbow). (that will knock the ball away), hit the ball from behind in the opposite direction, practice a few more times to control the intensity and direction

PS: too fancy but not practical