Asphyxiation play, also known as breath control play or erotic asphyxiation, is the practice of intentionally restricting the flow of oxygen to the brain for sexual gratification. There are several ways to accomplish the oxygen restriction. They include hanging, using a plastic bag for suffocation, self-strangulation, chest compression, and specific gases or solvents.
When one person engages in asphyxiation play by themselves it is called autoerotic asphyxiation.