Jack-ball

Full definition of jack-ball

Noun

1. A ball used in boules.
• 2005, Alan Hollinghurst, The Line of Beauty, Wani had been wet about the game until he turned out to be good at it, and now he was absorbed and unironical , tripping after the ball, yapping and grinning when he bombed the other boules away from the jack-ball, or cochonnet.