menage a trois

Definition of Menage A Trois in English :

1. menage a trois

household for three; an arrangement where a married couple and a lover of one of them live together while sharing sexual relations

WordNet Lexical Database for English. Princeton University. 2010.

Menage A Trois

nounWord forms: plural ménages à trois (menaʒ a trwɑ)

a sexual arrangement involving a married couple and the lover of one of them

1.

an arrangement by which a married couple and the lover of one of them live together

2.

any ongoing sexual relationship involving three people, esp. when they live together

n.

1. A relationship in which three people, such as a married couple and a lover, live together and have sexual relations.

2. Sexual relations among three people, especially a married couple and a lover.