Forty-rod

[…]he got powerful thirsty and clumb out on to the porch-roof and slid down a stanchion and traded his new coat for a jug of forty-rod, and clumb back again and had a good old time

Source: wiktionary

As a result of their laws in some of the states statistics furnish the facts that more “rot gut” whiskey is used than ever before, the milder and more harmless beverages having been in a measure embargoed by the law by reason of the fact that they cannot so easily be smuggled and handled as the concentrated “forty rod” whiskey.

Source: wiktionary

Since it had been laid out so ostentatiously on paper in 1863 it had progressed to the sum total of “two ‘she-bangs’ which fulfill[ed] all requirements of the place by dispensing bacon, coffee, tea, sugar, and calico in limited quantities and forty-rod liquor in unlimited quantities.”

Source: wiktionary