What VanDAmme is trying to explain is a Technique we used in Hapkido a lot. I can appreciate it is hard to explain.
Imagine you draw a circle in the air, except their arm is in the middle of the circle. As you come back to the end of the circle your arm will move to be about 45 degrees angle (facing towards them) and above the elbow joint. It kind of ends out being like a bent armbar that looks like a kimura, except the pressure is bending the elbow and twisting their shoulder, just like a figure 4 (kimura)
I actually applied this technique to a poof in a pub once. He came up and went to put his arm around my shoulders. I rolled straight into this technique from the side and pulled my fist ready to smash him straight in the face. I saw him absolutely shit his pants along with the pain he was feeling, I released the lock without hitting him and he dissapeared really quick.
Another good way to move an opponent from that lock is once it is applied, push their face back and around into the lock. They wil drop to the ground, and then you have them in a tight arm lock ready to drop into an armbar.