Other forms: conkers
A conker is the shiny brown nut of the horse chestnut. Play conkers.
The game is played by threading one on a string and hitting somebody else's. A conker is poisonous to eat, unlike the sweet chestnut it is often confused with.
1nounconkerThe shiny brown nut of the horse chestnut.
“The best conker of the season won eleven games.”
conker is a nut.
The nut is named after the game rather than the other way round, and the game's name is of disputed origin.
As a term for horse chestnut, derived from the name of the game conkers, which came first. Theories for the original meaning include 19th-century dialect conker (“snail-shell”) (the game of conkers was originally played using snail-shells), from conch + er, or a variant of conquer.
Etymology from Wiktionary, CC BY-SA