The acronym of BDSM actually represents several subcategories, though, BDSM in itself mainly is represented by the three categories that make up the acronym (yes, three). These are…… bondage/discipline (BD)….. Dominance and submission (DS)….. and sadism/masochism (SM). I’ll give you a short answer based on each of these. Please note that many of these categories will overlap in certain cases.
Bondage/discipline – Most forms of BDSM play will fall into this category, at least a little. If it’s about tying someone up or keeping them in line, this is where it falls. This includes disciplinary relationship, which might also include aspects of the next two.
Dominance/submission – This is control and power exchange. One party gives over partial (and sometimes almost total) control of their lives to another person. The ;most extreme of this is the Master/slave lifestyle.
Sadism/masochism – This is the practice of giving and receiving pain for pleasurable purposes. In most cases, the pleasure comes from either a sexual connection with the pain, or the endorphin release triggered by intense pain.
There are myriads of ways to practice one or more of these categories. While I am Dominant, my personal fave is to have an attractive young lady across my knees for a spanking. It’s all good fun. 😉