Spasming jellyfish, anyone???

Today in my bellydance class, we learned a move that I had seen before, thought was cool but wasn't quite sure how to do it. I thought I was getting better at it but it isn't quite up to par yet. I tried showing it to my sister and it didn't go well. I tried it again and faired better the second time. I likened the first attempt to a spasming jellyfish which my sister said she would have said the exact same thing. Somehow I think she was being sarcastic (she isn't at all subtle where sarcasm is concerned). Anyway, today's favourite thing is learning moves that I have seen before but didn't know how to do.