Shack up with
verb
To live together or have a sexual relationship without being married.
I heard that Jack decided to shack up with his girlfriend.

Often appears as...
- decide to shack up with
- start to shack up with
Usage tips
Informal, Disapproving
Colloquial
verb
To temporarily stay or live with someone.
While my house is being renovated, I'll have to shack up with my brother.

Often appears as...
- temporarily shack up with
- have to shack up with
Usage tips
Informal
Idiomatic
verb
To live together or have a sexual relationship without being married.
I heard that Jack decided to shack up with his girlfriend.

Often appears as...
- decide to shack up with
- start to shack up with
Usage tips
Informal, Disapproving
Colloquial
verb
To temporarily stay or live with someone.
While my house is being renovated, I'll have to shack up with my brother.

Often appears as...
- temporarily shack up with
- have to shack up with
Usage tips
Informal
Idiomatic
Definition 1 of 2

Informal Usage
The phrase is casual and might be inappropriate for formal conversations.

I'd avoid saying 'shack up with' during a job interview.
Potentially Sensitive
Some people might find it offensive or too personal as it refers to cohabitation or sexual relationships.

Be cautious when asking, 'Are you shacking up with someone?'
Cultural Nuance
In some cultures, living together outside of marriage is common; in others, it's frowned upon.

They're not worried about wedding plans; they're happy to just shack up.
Informal Usage
The phrase is casual and might be inappropriate for formal conversations.

I'd avoid saying 'shack up with' during a job interview.
Potentially Sensitive
Some people might find it offensive or too personal as it refers to cohabitation or sexual relationships.

Be cautious when asking, 'Are you shacking up with someone?'
Cultural Nuance
In some cultures, living together outside of marriage is common; in others, it's frowned upon.

They're not worried about wedding plans; they're happy to just shack up.
Informal Usage
The phrase is casual and might be inappropriate for formal conversations.

I'd avoid saying 'shack up with' during a job interview.
Potentially Sensitive
Some people might find it offensive or too personal as it refers to cohabitation or sexual relationships.

Be cautious when asking, 'Are you shacking up with someone?'
Cultural Nuance
In some cultures, living together outside of marriage is common; in others, it's frowned upon.

They're not worried about wedding plans; they're happy to just shack up.
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