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Noun: yackety-yak  'ya-ku-tee'yak
Usage: informal
  1. Rapid, continuous, and often trivial talk or communication
    "The constant yackety-yak from the next room made it hard to concentrate";
    - yak [informal], yack [informal], yakety-yak [informal], chatter, yatter [informal]

Derived forms: yackety-yaks

Type of: talk, talking