'chuckstone' definitions:

Definition of 'chuckstone'

From: GCIDE

Chuck \Chuck\ (ch[u^]k), n.
1. A small pebble; -- called also chuckstone and chuckiestone. [Scot.] [1913 Webster]
2. pl. A game played with chucks, in which one or more are tossed up and caught; jackstones. [Scot.] [1913 Webster]