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1. Give a thrashing to; beat hard
   - thresh, lam, flail
    
2. Move or stir about violently
   "The feverish patient thrashed around in his bed";
   - convulse, thresh, thresh about, thrash about, slash, toss, jactitate
    
3. Dance the slam dance
   - slam dance, slam, mosh
    
4. Beat so fast that (the heart's) output starts dropping until (it) does not manage to pump out blood at all
    
5. Move data into and out of core rather than performing useful computation
   "The system is thrashing again!"
    
6. (farming) beat the seeds out of a grain
   - thresh
    
7. Beat thoroughly and conclusively in a competition or fight
   "We thrashed the other team on Sunday!";
   - cream, bat, clobber, drub, lick, trounce, wipe the floor, whale [N. Amer], hammer, slaughter, tromp [N. Amer], smoke [N. Amer], muller [Brit], beat hollow

1. A swimming kick used while treading water

Derived forms: thrashed, thrashes, thrashing

Type of: agitate, beat, beat out, beat up, crush, dance, pound, shake, shell, swap, swimming kick, thump, trip the light fantastic, trip the light fantastic toe, trounce, vanquish, work over

Part of: treading water

Encyclopedia: Thrash