Another dance I have missed! It's the Brazilian extension of the Melbourne shuffle. Originally it seems to have been danced to hardstyle, but in a lot of more recent videos it's electro house instead:

So far, so electro flogger, but the whole thing does take an interesting turn after it was "commodified" (hi marxists!) through a cash-in hit that blew up big time at this year's Salvador carnival:

Ahh, Bahia, always able to make something different through its own imitative copying. There seem to be dozens of cover versions already on Youtube, of course.