1. to separate grain from wheat, rice, or other cereal plants by beating
Usage: agricultural
2. to move about violently or wildly

Examples

• Farmers used to thresh wheat by hand with flails.
• The combine harvester can thresh and separate grain automatically.
• Workers thresh rice by beating the stalks against wooden boards.
• The fish began to thresh wildly when caught in the net.
• He would thresh about in his sleep during nightmares.
• The storm caused the trees to thresh violently in the wind.