Ïmpalement

Impalement is an act of execution whereby the victim is pierced by a long stake. The penetration can be through the sides, from the rectum, or possibly through the mouth. The stake would be usually planted in the ground, leaving the victim hanging to die.
In some forms of impalement, the stake would be inserted so as to avoid immediate death, and would function as a plug to prevent blood loss, thus extending the victim's agony for as many as three days. One way to achieve this gradual death is to insert the stake through the rectum deep into the body of the victim until it left the body near the right shoulder, thus avoiding damaging the heart.