Green’s Dictionary of Slang

(orig. US) bohemian.

1968		T. Wolfe Electric Kool-Aid Acid Test (1969) 54: Now Alpert was sitting on the floor in Perry Lane in the old boho Lotus hunkerdown.
1984		Eble Campus Sl. Sept. 1: boho – avant garde, earthy, individualistic.
2023		(con. 1962) J. Ellroy Enchanters 33: Boho cottages were clumped behind a paved access road.