What does "thresh" mean?

Thresh: To beat soundly, as with a stick or whip; to drub.

Additional senses

  1. 2.To practice thrashing grain or the like; to perform the business of beating grain from straw; as, a man who thrashes well.
  2. 3.Hence, to labor; to toil; also, to move violently. I rather would be Mævius, thrash for rhymes, Like his, the scorn and scandal of the times. Dryden.
  3. 4.Same as Thrash. He would thresh, and thereto dike and delve. Chaucer.

Sources