In this video, Carl demonstrates how to use the dip swing as a good warm-up or shoulder prep to skill transfer to other movements. 

Note that this is something you want to build slowly and not to go crazy with - make sure you've built up the strength to be able to hold the bottom of your dip on tension with your shoulders; stay connected with your body in a neutral, hollow body position, and only swing as much as you can maintain stability with your wrists firm and elbows vertical at all times.