Adirondack steak, n. — Green’s Dictionary of Slang

Adirondack steak n.

[SE Adirondack + steak; the Adirondacks area is generally regarded as impoverished]

(US) venison.

[1893		Cardiff Times 16 Dec. n.p.: A story told in the Adirondacks, U.S.A. of a genial landlord [...] An alleged wager between two of his guests [...] ‘My friend and I have made a bet [...] He claims this steak is beef, and i say it is venison’ [...] The landlord blushed, ‘It is dewer,’ he replied].
1954		W.C. White Adirondack Country 118: Hotels served venison in and out of season; out of season, the name changed to ‘Adirondack Steak’ or ‘mountain lamb’ .