This, ahem, rather explicit genre of Jamaican club dancing is called 'daggering', I believe, and may be NSFW if you happen to work in the 1950s - basically you might not want to show your granny this.
Set it to perfectly-timed pro wrestling commentary, though, and it becomes absolutely fantastic.
Also, if anybody has a video of Coppers action as described by Michéal Ó Muircheartaigh, or David Attenbrough, then we need to see it right away.
http://www.youtube.com/watch?v=e3PwaO11HGY
H/T: uniladmag