conkers

Noun

• the inedible nutlike seed of the horse chestnut
• A game for two players in which the participants each have a horse-chestnut (known as a "conker") suspended from a length of string, and take turns to strike their opponent's conker with their own with the object of destroying the opponent's conker before their own is destroyed.
• plural of conker

Synonyms

buckeye, conker, horse chestnut, cobbler