Tiddledywinks n. A game in which the object is to snap small disks of plastic, bone, ivory, or the like, from a flat surface, as of a table, into a small cup or basket; called also tiddlywinks. (U. S.)
... Cowles, gently hesitant toward Ben Rusk's affection, kept asking Carl why he didn't come to see her oftener, and play tiddledywinks. ... — The Trail of the Hawk - A Comedy of the Seriousness of Life • Sinclair Lewis