Green’s Dictionary of Slang

(US) Broadway, New York.

1927		T.A. Dorgan in Zwilling TAD Lex. (1993) 56: There have been rumors running up on Broadway recently regarding a secret meeting of Dempsey and Tunney. Mazda Lane is always full of rumors.
1928		N.Y. Times 25 Nov. X2: Here, free from Mazda Lane’s monoxide scent, without New York’s huge profit and huge rent.
1944		C.S. Montanye ‘Shoulder Straps’ in Thrilling Detective Feb. 🌐 Humpty Keller [...] had been around the mazda thoroughfare for a long time.