conk·er I. \ˈkäŋkə(r), ˈkȯŋ-\noun (-s) Etymology:conch + -er (influenced by conquer) 1.conkersplural: a game popular in England in which each player swings a horse chestnut or originally a snail shell threaded on a string to try to break one held by his opponent 2.: a horse chestnut or snail shell especially when used in conkers II. variant of kunkur