MANUAL STIMULATION
When a person uses their hand and/or hands to sexually stimulate another person’s body. See also Masturbation and Mutual Masturbation.
MASOCHISM / MASOCHIST
Signifying the M in BDSM, Masochism is when a person (“masochist”) becomes sexually aroused from receiving consensual physical or psychological pain that is inflicted by another person (usually the Dominant). Typically, the submissive / slave / bottom is the person receiving pain from the Master / Dominant / Top. Masochists may enjoy physical pain such as whipping, spanking, and / or slapping to various parts of their body, among other forms of Discipline experienced in BDSM scenes. This kind of pain may or may not accompany sexual acts and may be an end in and of itself. Psychological pain may include humiliation, degradation, name-calling, and so forth. All BDSM practices must be done with Consent and caution. The term “masochism” is often used alongside “sadism,” whereby a masochistic individual is sexually aroused by having a sadistic individual inflict the aforementioned types of pain on them.
MASOCHISTIC CUCKOLD
An individual who is sexually aroused by consensually watching their partner have sex with another person while their partner and the other person verbally humiliate them. Masochistic cuckolds often do not participate in the sex in any way but are “forced” to watch their partner. For instance, in a masochistic cuckolding scenario, a male cuckold may be aroused when his wife and her lover have sex in front of him, saying things like “this is how a real man does it” and /or making fun of the size of his penis.
MASTER
A term used within the BDSM community to describe a Dominant person. However, because of the negative connotations that relate to the concept of slavery (which has negative implications with racist overtones), the term “Master” is less commonly used and is being replaced by terms such as Dominant, Dom / Domme, Top, and so forth.
MAT ROOM
A term used within the Open-minded lifestyle and/or Swinging community and/or Kink community to refer to a room dedicated to Group Sex activities, usually during a play Party and/or other such events.
MEDICAL ROLEPLAY
In sexual roleplay, a hospital or medical scene involves the sex partners assuming the roles of doctors, nurses, surgeons, and patients to act out specific or general medical fetishes. Medical fantasy is a genre in pornography, though the fantasy may not necessarily involve pornography or sexual activity.
MEET FOR PLEASURE
On virtual dating profiles, when someone writes “meet for pleasure,” this often indicates that the person / people are willing to meet for sexual activities, usually without any further social and/or emotional interest.
MENAGE A TROIS
The French term for “threesome.”
METAMOUR
Within Polyamorous relationships, a Metamour is an individual who one’s partner is dating / in a relationship with but who is not romantically and/or sexually involved with that person. For example, Person 1 is in a relationship with Person 2, and Person 2 begins to date Person 3, making Person 3 the Metamour of Person 1.
MFM / MMF
Acronym used in threesome, group sex, or pornography terms where the M stands for Male and F for Female; MFM or MMF means that the sex scene includes two males and one female.
MILF
Acronym for Mom I’d Like to Fuck.
MONO POLY / MONO POLYAMORY
A relationship style that describes when a person is in a monogamous relationship with someone, while also consenting to their partner’s polyamorous practices with other people outside of their monogamous relationship.
MORESOME
More than three or four people having sex at the same time. For instance, some people may use this in the context of “foursomes and moresomes” to refer to more than four people having sex, while others may say “threesomes and moresomes” to refer to three or more people in the same sexual scenario.
MUNCH
A term used within the Open lifestyle and Kink community to refer to meetings and/or events not specifically for the intention of having sex or playing sexually. Munches are essentially “meet-and-greets” and are key for newcomers within these lifestyles to get to know each other, ask questions, and be introduced to their communities. Munches may be in a physical location or can be done virtually as well.
MUTUAL MASTURBATION
Mutual masturbation has two meanings, depending on the context in which it is used. In one context, mutual masturbation can refer to when one or more people masturbate themselves (touching their own bodies) at the same time, while watching the other person / people doing the same to themselves. In a different context, it may also mean when one or more people stimulate each other manually at the same time (e.g., using their hands to stimulate themselves and/or other people at the same time).