Shogun and Ninja showed us some SICK moves from the Thai clinch.
Okay, I know this is semi-unrelated to your question, but try this defense against a Thai clinch:
-He has both hands on your head in the neck clinch, your hands are on the outside
-Cross face him with your right outer forearm
-Immediately, perform a duck-under type step to HIS right side (your left side), so that his right tricep now rests on top of your left shoulder, and you're angled maybe about 45 degrees away from him
-Underhook his right arm deep with your left arm. Ideally, this will throw him a little forward
-While doing this, push on the right side of his head down and away with your right hand, and lock out your elbow.
-Bring your underhooking arm around his shoulder, and figure-4 your grip around your right wrist. Your right elbow should still be locked out, and your left arm has an extremely deep overhook that is closed off by the figure-4 grip on your right wrist.
-You're now free to throw him onto the ground or knee the ever-loving shit out of his head.