shack up

British  

verb

1. slang to live or take up residence, esp with a mistress or lover

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shack up Idioms  

1. Sleep together or live in sexual intimacy without being married. For example, They had been dating for two months and then decided to shack up . [ Slang ; first half of 1900s]

2. Stay or reside with, as in I'm shacking up with my cousin till I find a place of my own . [ Slang ; first half of 1900s]

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Example Sentences

Distraught and at a loss, Yamazaki shacked up at City Lights’ Grant Avenue office for a few months, his sleeping bag on the floor.

From Los Angeles Times

In the summer of 1921, long before garages became the settings of folkloric Silicon Valley origin stories, Picasso shacked up in one in Fontainebleau, southeast of Paris, to take on his own creative pursuits.

From New York Times

This takes a bizarrely conventional turn in his courtship of Elsa, whom he doesn’t merely shack up with but marries.

From New York Times

And, no, she isn’t desperate to see me shacked up.

From Washington Post

A novice filmmaker, she belongs uneasily to both categories, having shacked up with Sandro Valera, an older, far more established conceptual artist and reluctant member of the rich and influential Valera family.

From New York Times