Plainsies

Origin

Diminutive of plain. Compare halfsies, swapsies, etc.

Full definition of plainsies

Noun

1. In children's games, such as jacks, the simplest style of play, without additional actions such as clapping.
• 1970, Marta Weigle, Follow my fancy: the book of jacks and jack games (page 22)When you have mastered plainsies, the regular jack game, and have learned all the rules, you will be ready to use this part of the book. A fancy is a variation of plainsies which usually requires more skill than plainsies does.