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Noun: fribble  fri-bul
  1. A frivolous, foolish, or ineffectual person or thing
    "He dismissed the proposal as a fribble"
Verb: fribble  fri-bul
Usage: informal
  1. Act in a trivial or frivolous manner; waste time on unimportant matters
    "Stop fribbling and get to work on the important tasks"

Derived forms: fribbled, fribbles, fribbling