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conker

noun conk·er \ ˈkäŋ-kər \

Definition of conker

1 : a horse chestnut especially when used in conkers
2 conkers plural : a game in which each player swings a horse chestnut on a string to try to break one held by the opponent

Origin and Etymology of conker

conch + 2-er, from the original use of a snail shell on a string in the game

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