For the life of me, I can't remember a vertical splat of mine. The only real splat I remember was training jiu jitsu. I pulled an arm bar on a guy but didn't tighten up to finish because I wanted to let him escape and transition positions as you do when you spar. He spazzed out of the position and I pitched forward onto my shoulder as I turned my head to save my face. That shoulder popped right out and I slammed it back in before I could reconsider. Pretty damn big splat to witness I bet.
As a typical Canadian, when I think SPLAT, it is often in context to hockey hits. That is about 4 minutes of splats if you don't know what I am talking about. ;)