The Collaborative International Dictionary
Little cassino
Cassino \Cas*si"no\, n. [It. casino a small house, a gaming house. See casino.] A game at cards, played by two or more persons, usually for twenty-one points.
Great cassino, the ten of diamonds.
Little cassino, the two of spades.
Wiktionary
little cassino
n. (context card games English) The two of spades in the game of cassino.