shack up with someone

shack up (with someone)

1. To live with someone or stay at someone's house temporarily. We've been shacking up at my brother's place while our house is being renovated. Do you mind if I shack up with you for a while? My wife and I are going through a bit of a rough patch.
2. To be in a sexual relationship with someone; to live or reside with someone in a sexual relationship. A: "I haven't seen Beth in a while." B: "She's been shacking up with some hot-shot lawyer she started dating a few weeks ago." My parents still disapprove of us shacking up together before we're married; they're a little old-fashioned that way.
See also: shack, up

shack up (with someone)

1. in. to have a one-night stand with someone; to copulate [with] someone. He only wanted to shack up with me.
2. in. to move in with someone temporarily, presumably for sexual purposes. They shacked up for over a year until her parents found out and stopped sending her money.
See also: shack, up