Definitions of yack
  1. verb
    talk incessantly and tiresomely
    synonyms: jaw, rattle on, yack away, yap away
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    type of:
    mouth, speak, talk, utter, verbalise, verbalize
    express in speech
  2. noun
    noisy talk
    synonyms: cackle, chatter, yak, yakety-yak
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    blether, chin music, idle talk, prate, prattle
    idle or foolish and irrelevant talk
    type of:
    talk, talking
    an exchange of ideas via conversation
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