'marbles' definitions:

Definition of 'marbles'

From: WordNet
noun
A children's game played with little balls made of a hard substance (as glass)
noun
The basic human power of intelligent thought and perception; "he used his wits to get ahead"; "I was scared out of my wits"; "he still had all his marbles and was in full possession of a lively mind" [syn: wits, marbles]

Definition of 'marbles'

From: GCIDE
  • marbles \marbles\ n. A children's game played with marbles[3], little balls made of a hard substance (as glass). [WordNet 1.5]