Today’s comic was inspired at a belly dancing class I actually went to… once. (The things I do for my readers!) It’s a lot of fun, and beautiful when done well, but personally, I can really relate to the three guys on the right.
I’m afraid I haven’t got any more useful information. I don’t actually know anything about the different styles of belly dancing so if you’re looking for a legit style guide, you’re in the wrong place! I had to Google them just to get image reference for the strip.