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The Collaborative International Dictionary
In-and-in

In-and-in \In"-and-in"\, n. An old game played with four dice. In signified a doublet, or two dice alike; in-and-in, either two doubles, or the four dice alike.

Wiktionary
in-and-in

n. An old game played with four dice, a double being referred to as "in" and two doubles as "in-and-in".