ménage à trois
noun/meɪˌnɑːʒ ɑː ˈtwɑː/
/meɪˌnɑːʒ ɑː ˈtwɑː/
(plural ménages à trois
[usually singular] (from French)/meɪˌnɑːʒ ɑː ˈtwɑː/
/meɪˌnɑːʒ ɑː ˈtwɑː/
)- a situation where three people, especially a married couple and their lover, live together and have sexual relationships with each other
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ménage à trois