General lifestyle terms
The lifestyle (LS). The term many swingers prefer for swinging. "Are you in the lifestyle?" is a common, discreet question.
Swinger. Someone, usually in a couple, who has recreational experiences with others by agreement.
ENM (ethical non-monogamy). The broad umbrella covering swinging, polyamory, open relationships and similar arrangements.
CNM (consensual non-monogamy). Another umbrella term, often used interchangeably with ENM.
Vanilla. Someone outside the lifestyle, or activities that are conventional. "Our vanilla friends don't know."
Newbies. People new to the lifestyle. Many profiles say "newbies welcome".
Play. Sexual or sensual activity with others. "Do you play on a first meeting?"
Meet and greet (M&G). A first meeting, usually drinks, with no expectation of play.
Levels and arrangements
Soft swap (SS). Intimacy with others that excludes penetration. Definitions vary. See swap levels.
Full swap (FS). Full intercourse with others, by agreement.
Parallel play. Pairs make love side by side, each sticking to their own partner.
Same room (SR). Play in which couples stay in the same room.
Separate room. Play in which partners are in different rooms with others.
Closed door / open door. At clubs or parties, a closed door usually means private; an open door may mean others can watch or approach. Check house rules.
People and roles
Unicorn. A solo woman, often bi or bi-curious, who dates couples. See the unicorn guide.
Male unicorn. A solo man, frequently bi, who dates couples.
Single male (SM). A straight single man who meets couples. Etiquette matters; see our guide for single men.
Hotwife. A partnered woman who takes other lovers, cheered on by her partner. See the hotwife lifestyle explained.
Bull. Usually an unattached man chosen by a hotwife pair.
Stag and vixen. He (stag) relishes her (vixen) escapades and encourages them.
Cuckold. A man who enjoys his partner having experiences with others, sometimes with an element of humiliation or submission.
Unicorn hunters. A critical label for pairs chasing a solo woman to fill a rigid fantasy.
Shorthand on profiles
MF. A couple of a man and a woman.
MFM / FMF. Threesomes with two men and a woman, or two women and a man.
MFMF. Two couples.
Bi, bi-curious, bi-comfortable. Bisexual, curious about same-sex contact, or comfortable around it without necessarily participating.
Girls only / girl-girl. The women play with each other but the men do not with other men.
DDF. No drugs and no infections; some couples use it, though many prefer to discuss testing directly.
Hosting / travelling. Whether you can host at home or prefer to travel to others.
Feelings and dynamics
Compersion. Pleasure in seeing your partner happy with someone else.
NRE (new relationship energy). The excitement of a new connection; more common in polyamory but relevant to swingers too.
Veto. A partner's right to say no to a specific person.
Aftercare. Reconnecting with your partner, and checking in with others, after an experience.
Debrief. A conversation the day after an experience to share feelings and plan ahead.
Places and events
Swingers club. A venue for lifestyle socialising and play, usually with a bar, dance area and separate play spaces. See swingers club etiquette.
On-premise / off-premise. On-premise clubs allow play on site; off-premise clubs are social only, with play happening elsewhere.
House party. A private lifestyle gathering at someone's home.
Takeover. An organiser books a hotel or resort for a lifestyle event. See travel ideas.
Lifestyle resort. An adults-only resort that welcomes swingers.
Symbols
Upside-down pineapple. A widely recognised lifestyle symbol.
Purple. Sometimes used at events to signal openness.
Black ring. Linked by some with the lifestyle, by others with asexuality.
Queen of spades. Associated with the hotwife lifestyle.
Read swinger symbols and signals for more.
Why definitions vary
Words in the lifestyle evolve, and different communities, countries and age groups use them differently. Soft swap is the classic example: for one couple it means kissing only, for another it includes oral. Always check what the people you are talking to mean, especially on terms that relate to limits.
Using terms on your profile
A few well-chosen terms make your profile clearer: "MF couple, soft swap, same room, newbies, bi-curious female". Avoid so much shorthand that your profile reads like a code; a sentence or two in plain language helps people feel they know you. See bio and photo tips.
Terms about safety and health
Safer sex. Using condoms, dental dams and other barriers, plus regular testing, to reduce the risk of infections.
Fluid bonded. Partners who have agreed to have unprotected sex only with each other.
STI panel. A set of sexual health tests. Many swingers test every few months and share dates of their most recent results.
PrEP. A medication that reduces HIV risk, increasingly discussed openly in the lifestyle.
Terms about online profiles
Verified. A profile that has completed a verification step, such as a photo or ID check. Verification badges help reduce fake profiles; see catfish checks.
Face pics. Photos that show faces. Many couples keep them private and share only after trust is built.
Locked album. A private photo gallery shared only with approved contacts.
Catfish. Someone using fake photos or a fake identity.
Ghosting. Stopping communication without explanation; common online, and worth taking lightly.
Terms about events
Meet and play. An event where play is expected or possible.
Lifestyle cruise. A cruise, or part of one, booked for swingers.
Dress code. Venue rules on clothing, often themed.
Wristband system. A colour code some events use to signal interests or limits.
Learning the language over time
Nobody needs to memorise every term before getting started. Most people pick up the vocabulary gradually through profiles, conversations and events. If you see an unfamiliar abbreviation, ask the couple who used it. It is a natural conversation opener and shows that you care about getting things right.
Regional differences
UK swingers often say "swapping" or "swinging" interchangeably, while North American couples lean on "lifestyle" and "LS". Australian and New Zealand profiles mix both.
Slang varies by country
British, American and Australian swingers do not always use the same words. A "meet and greet" in one city may be called a "social" elsewhere, and abbreviations on profiles differ too. If a term on someone's profile is unfamiliar, ask what they mean rather than guessing.
Frequently asked questions
What does LS mean in swinging?
LS stands for lifestyle, the term many swingers prefer for swinging. Asking whether someone is in the lifestyle is a discreet way to ask if they swing.
What does vanilla mean in the lifestyle?
Vanilla describes people outside the lifestyle or conventional activities. Many swingers keep their lifestyle private from vanilla friends and family.
What is a bull in swinging?
A bull is a man, often single, who meets a hotwife couple and has experiences with the woman with her partner's encouragement.
What does MFM mean on a swinger profile?
MFM describes a threesome with two men and one woman. FMF describes two women and one man, and MFMF describes two couples.