horsemanning

Etymology
, in allusion to the Headless Horseman of folklore.

Noun

 * 1) The act of posing for a photograph in such a way that one appears to have been beheaded, with the head resting on the ground or on a surface.
 * 2) * 2015, Long Dead Before Dying (page 26)
 * “There's a picture of a kid on there,” Bob accused, “a dead kid with his head cut off. Where did you even get it!?” Kevin shook his head in disbelief. “It's horsemanning, dad,” he said, disgusted at his parents' stupidity.