This is almost certainly the world's only mannequin based guitar hero clone. Two mannequins - one male, one female - impaled on poles. Spank and slap them in time to the music to play.
This is not a comment on the objectification of pop stars in today's society. It is a bizarre spectacle which provides you the opportunity to watch two people groping and slapping a mannequin in perfect sync!
Smackbottoms is ideal for your Office Christmas Party.
But to be honest, we don't want to go there!