1. separates grain from wheat, rice, or other cereal plants by beating
Usage: agricultural
2. moves violently or wildly; thrashes about

Examples

• The farmer threshes the wheat with a mechanical harvester.
• She threshes the grain by hand using traditional methods.
• The machine threshes hundreds of bushels per hour.
• The injured bird threshes its wings frantically.
• He threshes about in his sleep when having nightmares.
• The fish threshes wildly when caught on the line.