Green’s Dictionary of Slang

(US) to live, to reside.

1855		Knickerbocker (N.Y.) XLVI 100: Is this the place where the phrenologist ‘holds out?’ [DA].
1917		‘A-No. 1’ From Coast to Coast with Jack London 73: Let us hold out in here and in the end take our deserts like good fellows!
1930		J. Lait Gangster Girl 21: On one of the upper floors, the whole of which he held out, was his pet hide-away.
1952		Lait & Mortimer USA Confidential 168: The Sicca family holds out there in splendor.