What is the meaning of phrase are you in digs british English?

The phrase "are you in digs" is a British English expression meaning "are you staying in lodgings?"

"Digs" is slang for lodgings, especially rented rooms in someone else's house.

So, if someone asks you "Are you in digs?", they're asking if you're currently staying in someone else's house, usually for a short period of time.