A card game, otherwise called all-fours.
1856. He was way up to the Galeners, a-raftin saw-logs; playing seven-up; and hoss-racin.Knick. Mag., xlviii. 545 (Nov.).
1856. We find the whole gang busy at midnight in a wild carouse, in which songs and shouts, and terrible stoups of liquor, were employed to relieve seven-up, and other gambling games.W. G. Simms, Eutaw, p. 407 (N.Y.). (Italics in the original.)