somebody sent this to me.. at first I thought it was called the Penguin Dance just because it was haredi boys doing it - a common Israeli nickname for haredim is "penguins", because of the black and white.. I did some checking, and there really is a dance called the Penguin Dance. But then it was pointed out that this used to be called The Bunny Hop. Doing some more research discovered there is a lot of arguing how this originated, what it was changed from, who invented it, and all that.. either way, enjoy the new yeshivish dance - The Penguin Dance