What is the meaning of thrashing?

noun

• A sound defeat.
  • synonyms: walloping, debacle, drubbing, slaughter, trouncing, whipping
• The act of inflicting corporal punishment with repeated blows.
  • synonyms: beating, licking, drubbing, lacing, trouncing, whacking

verb

• Give a thrashing to; beat hard.
  • synonyms: thrash, thresh, lam, flail
• Move or stir about violently.
  • usage: "The feverish patient thrashed around in his bed"
  • synonyms: convulse, thresh, thresh about, thrash, thrash about, slash, toss, jactitate
• Dance the slam dance.
  • synonyms: slam dance, slam, mosh, thrash
• Beat so fast that (the heart's) output starts dropping until (it. does not manage to pump out blood at all)
  • synonyms: thrash
• Move data into and out of core rather than performing useful computation.
  • usage: "The system is thrashing again"
  • synonyms: thrash
• Beat the seeds out of a grain.
  • synonyms: thrash, thresh
• Beat thoroughly and conclusively in a competition or fight.
  • usage: "We licked the other team on Sunday"
  • synonyms: cream, bat, clobber, drub, thrash, lick