THREESOME
Meaning of THREESOME in English
/ ˈθriːsəm; NAmE / noun
1.
[ C +sing./pl. v . ] a group of three people
2.
[ C ] an occasion when three people have sex together
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005