Definition from Wiktionary, the free dictionary
Diminutive form of six.
sixies (plural sixies)
- A call in any children's game, such as jacks, where six actions must be performed.
- 1999, Susan J. Bandy, Anne S. Darden, Crossing boundaries
- She missed on sixies, and then it was my turn, my last chance to beat her and claim the championship. I selected my spot, tossed the jacks.