The word "shack up" in English means: To start living together in the same house or apartment, especially when you are not married., To stay or live temporarily in a particular place..
The phonetic transcription of "shack up" is /ʃæk ʌp/ in British English and /ʃæk ʌp/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "shack up": cohabit, live together, move in.
Example usage of "shack up": "They decided to shack up after only dating for a few weeks.". More examples on the page.