What?

I was browsing today trough My Sims 3 Blog and found this,

 

 

Well, I can think of more than a few things I would totally love this for; but the arm twirling and the jumping on bodies is disturbing to say the least… What is this?? I enjoyed it though, and have to say the creators that come up with this kind of thing are just amazing. I couldn’t even do a signature banner for The Sims 3 forums about an hour ago :p