S&M
Sadism and Masochism
Consensual giving and receiving of pain, intense sensation, or humiliation for pleasure or meaning. S&M is one part of the broader BDSM umbrella and does not necessarily involve dominance and submission.
Sadism
Enjoyment of giving consensual pain, intense sensation, or humiliation. In BDSM, sadism is bounded by the receiver's consent and is not the same as enjoying unwanted suffering.
Sadist
A person who enjoys giving certain forms of consensual pain, intensity, or humiliation. The label does not create consent or mean the person wants every kind of sadistic play.
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Safe call
Also: safecall
A prearranged check-in with a trusted person before, during, or after meeting someone, often with agreed action if the check-in is missed. It is a practical personal-safety measure, especially for first meetings.
Safe signal
Also: nonverbal safeword
A gesture or action agreed in advance to pause or stop a scene when speech may be difficult or impossible. Examples must be chosen for the actual position and abilities of the participant, and the signal must remain observable.
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Safeword
Also: safe word
A word or phrase agreed in advance to communicate pause, adjustment, or stop during a scene. A safeword supports consent but does not replace active attention; if someone appears unable to respond or in distress, the activity should stop.
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Scene
A bounded period of BDSM play or roleplay with a recognisable beginning and end. A scene may be sexual or nonsexual and is usually discussed beforehand through negotiation.
Self-bondage
Restraining oneself without an active partner present. It carries extra danger because there may be no one to respond to panic, circulation problems, equipment failure, or a failed release, so being alone materially increases the risk.
Sensation play
Play focused on touch, temperature, texture, sound, pressure, or other sensory experiences. It can be gentle or intense, and the risks depend on the tools, body areas, and sensations chosen.
Service submission
Also: service-oriented submission
A submissive style centred on consensually performing useful acts, rituals, or care for a Dominant. Service may be domestic, ceremonial, personal, or digital and should fit the capacities and boundaries of both people.
Shibari
Also: kinbaku, Japanese-inspired rope bondage
A term commonly used outside Japan for Japanese-inspired rope bondage, with an emphasis that may include connection, aesthetics, structure, or eroticism. Terminology and traditions are debated, and competent rope safety remains more important than the label.
Sissy training
Also: sissification
Consensual adult feminization roleplay structured through tasks, clothing, language, or rituals, often within femdom. The word "sissy" should be self-chosen or explicitly agreed because it can feel affirming to some people and insulting to others.
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Slave (consensual BDSM)
Also: BDSM slave
An adult who chooses a highly submissive or service-focused role, often in an M/s dynamic. It is a consensual identity or relationship title, not legal ownership, forced labour, or permission to violate someone's rights.
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Soft limit
Something a person may be hesitant about or willing to consider only under specific conditions. It is still a limit: unless the person gives a clear yes to the specific proposal, the answer is no.
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Spanking
Consensual striking of the buttocks with a hand or implement for sensation, roleplay, or discipline. Desired intensity, marks, body areas, and emotional meaning should be discussed rather than assumed.
SSC
Safe, Sane and Consensual
A widely used BDSM principle encouraging safety knowledge, sound judgement, and consent. "Safe" and "sane" are not guarantees or perfectly objective labels, so participants still need to discuss specific risks and personal circumstances.
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Strap-on play
Also: strap-on
Sexual or BDSM play involving a dildo or other attachment worn with a harness or held against the body. The act does not determine anyone's gender, orientation, or power role.
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Sub frenzy
Also: new-sub frenzy
Community slang for the rush of excitement that can lead a newer submissive to take on too much, too quickly, or trust before vetting. It is a reminder to slow down, learn, maintain outside support, and protect ordinary life commitments.
Subdrop
Also: sub drop
A temporary emotional or physical low that some submissives or bottoms experience after intense play. Feelings can include fatigue, sadness, irritability, or vulnerability and may appear immediately or later.
Submissive
Also: sub
A person who consensually gives another person a defined degree of control in a scene or relationship. Submissive is a chosen role or identity, not a synonym for weak, passive, inferior, or available to everyone.
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Subspace
Community slang for an altered, absorbed, or euphoric state some submissives or bottoms report during intense play. A person in subspace may communicate differently, so it should not be treated as a good time to negotiate new activities.
Switch
A person who enjoys more than one side of a BDSM role, such as Dominant and submissive or top and bottom. They may switch by partner, activity, scene, or mood.