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1. Move or stir about violently
   "The feverish patient threshed around in his bed";
   - convulse, thresh about, thrash, thrash about, slash, toss, jactitate
    
2. Swing or move in a random unstable way
   "Her arms were threshing";
   - flail
    
3. (farming) beat the seeds out of a grain
   - thrash
    
4. Beat hard and repeatedly, esp. with a whip, cane, etc.
   - thrash, lam [informal], flail

Derived forms: threshed, threshes, threshing

Type of: agitate, beat, beat up, flap, shake, work over

Encyclopedia: Thresh, George