Glossary: Erotic spanking: The act of spanking another person for the sexual arousal or gratification of either or both parties. Glossary: Edgeplay: SM play that involves a chance of harm, either physically or emotionally. Because the definition of edgeplay is subjective to the specific players (i.e., what is risky for me may not be as risky for you), there isn't a universal list of what is included in edgeplay. However, there are a few forms of play which almost always make the cut, including fireplay, gunplay, rough body play, breath play, and bloodplay.