be shacked up with
phrasal verbshack up with somebody | be shacked up with somebody
- (slang) to start/be living with somebody that you have a sexual relationship with, but that you are not married to
姘居；和（性伴侣）同居 - I hear he's shacked up with some woman.
我听说他跟一个女人同居了。
- I hear he's shacked up with some woman.