Green’s Dictionary of Slang

(US black) to dress flashily or vulgarly.

1948		D. Burley N.Y. Amsterdam News 10 Apr. 15: All zooted and bopped back and wearing dark glasses and E-Flat caps.
1962		(con. 1953–7) L. Yablonsky Violent Gang (1967) 84: Zoot yourself and plaster your hair until it looks like a duck’s behind.