To rub ones own excrement over the back of a horse before riding bareback for several hours then licking the beast clean. Always done whilst listening to a wide collection of indy and electro music (consisting almost entirely of unsigned and/or foreign bands), typically followed by a few hours of chronic moping/depression/masturbation in ones room.
As I opened the door an unpleasant stench rushed out on a gust of air. Inside the room sat only a dishevelled, underfed horse, its naked master and a stereo playing that hungarian album by Venetian Snares. I knew for sure that she had been the victim of a vicious grimbling.