swinging
n. uncountablen. the practice of people in committed relationships having sex with other people, often at parties. It is a casual way for couples to explore together.
n. the practice of engaging in sexual activities with others while in a committed relationship, typically involving partner swapping or group encounters. Informal in register; often associated with specific social subcultures or private events.
They decided to try swinging to spice up their marriage.
The couple joined a private club dedicated to swinging after discussing their boundaries for several months.
Sociological studies of swinging often highlight the importance of strict consensual rules and the maintenance of the primary emotional bond despite the introduction of external sexual partners.
The sexual practice is so called after the custom in swing dancing of changing partners after each dance, unlike traditional ballroom dance styles where one has a single partner.
Uncountable when referring to the social practice; typically used without an article.