I think I've learned this technique in my old Karate/TKD class (yeah, they taught really useful things...not that point mumbo jumbo. The only problem with the class was that it was really really...not instense). I'm not going to act like a "fighting expert" (I'm far from it, really), but this method is actually pretty effective IMO. When your opponent goes for the takedown, you jump back at an angle, while at the same time grabbing onto his shoulders. Since he's moving forward, and you're in the air (at that very moment), you'll be moved with him without having to waste energy...all the while pushing him downwards.
I mean, that's what I think Kin was referring to. I could've interpereted wrong, though.