Mmmm...plus praise
What is it about this flash that strikes me wrong? Hmmm...
I guess you went to break away from the mainstream and do something risky and such, eh? Well, I'm afraid that most of what I watch is Newgrounds stuff, and here, risky stuff IS the mainstream. By making yours short, with no plot, barely any changes and only one sight gag--plus painful color flashes in the beginning--you chose to do a very small-scale, slightly flawed piece of that mainstream. It doesn't shock me or surprise me, and barely made me laugh at all.
You picked a great song to set to repetitive motion and psychedelic colors, though. I loved that aspect of it. If you're going to make another one, I would suggest using many different sight gags, and perhaps choosing a variety of image types--not just a bunch of different naked dancing people, for instance.
Plus, props for not stooping so low as to make a visual cock joke. Good luck on your next flash!