BDSM stands for Bondage and Discipline, Dominance and Submission, and Sadism and Masochism. It is a form of consensual sexual expression that involves the use of power dynamics, role-playing, and various physical and psychological sensations. This can include activities such as rope bondage, spanking, and role-playing scenarios in which one person takes on a dominant or submissive role. It is important to note that all BDSM activities should be consensual and that all parties involved should have a clear understanding of boundaries and safety protocols.