It is thought that the name comes from the Headless Horseman, an evil character from Washington Irving's "The Legend of Sleepy Hollow."
Horsemaning is currently experiencing a revival and has become a Facebook sensation like planking, owling or cone-ing. Horsemaning requires two individuals, one laying with their head back and hidden and the other exposing only their head in the picture.
If done correctly, horsemaning produces a brilliant optical illusion and allows for more creativity than other photo-posing fads like planking. Also, while planking and owling are solo games, horsemaning encourages social interaction as it requires a partner.
Take a glimpse of the horsemaning photos as given in Facebook Horsemaning community page:
Source : www.ibtimes.com