idiomto belivingwith someone as asexualpartnerwhen you are notmarriedto them:(未婚)同居"Is Alan stilllivingwith Maria?" "No, he's shacked up with someoneelsenow."“艾伦和玛丽亚还住在一起吗?”“没有,他现在已经和别人同居了。”SMART Vocabulary: related words and phrasesMarriage, cohabitation & other relationships
adulteress
affinal
as husband and wifeidiom
be an itemidiom
civil marriage
hitched
honest
husband
intermarriage
intermarry
monogamous
monogamy
morganatic
ménage à trois
non-marital
shack
shack up
something
together
trouble and strifeidiom
See more results ?(Definition ofbe shacked upfrom theCambridge Advanced Learner's Dictionary & Thesaurus? Cambridge University Press)#https://dictionary.cambridge.org//dictionary/english/be-shacked-up##