Green’s Dictionary of Slang

(US) 42nd Street from Eighth Avenue to Times Square; orig. the centre of New York’s tourism, nightlife and underworld.

1978		W.D. Myers It Ain’t All for Nothin 96: ‘That [i.e. domestic violence] how come you was messing around forty-deuce?’ ‘Forty what?’ ‘Forty-second Street’.
1981		A.K. Shulman On the Stroll 3: Three-card monte players speak of Forty deuce.
1992		N. George ‘Cool vs. Chilly’ in Buppies, B-Boys, Baps and Bohos (1994) 69: Our destination was Forty Deuce and the moldy Times Square theaters.
2004		(ref. to 1979) K. Hemmerling Whorehound 247: In a manic state in 1979 Keith worked under the name of Damián Stone, having sex with Deliah, working for White Lightening in Forty Deuce-Times Square.
2010		9th Prince ‘I Will Rise’ 🎵 Catch me in the 40 deuce, sipping on Hennessy and juice.