Never heard of this term before, but Sensei Campbell is one that taught me how to modify a uechi kick to act as "stopping" kick. If someone is generating forward momentum, in essence, commiting to an attack, you ought to be able to stop their forward motion by jamming it with a kick before they have gotten a chance to develop significant motion (momentum).
This has to be done early in their step, so your timing would need to be explosive as well. As taught by sensei Campbell, a block is executed on the lead attacking limb (usually arm/fist) simultaneous to a kick to the hip joint, just above the thigh. the side heel - outside edge - of the foot goes along the seam of the thigh and pelvis.
applying this kick as they come in on you will not only stop them in their tracks, but will also cause them to keel over/crumple forward as you have stopped their forward motion at the hip, but the rest of the body continues to move forward for some distance, folding the proevious upright attacker into a crumpled over Bg ready for further treatment of elbows and knees as he crumples in front of you......that's the theory......Have used a stopping kick in sparring a few times, never on the street (partly or mostly cuz I am trying to avoid most of the on street altercations)....
Seek knowledge from cradle to grave