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Verb: mess about
  1. Spend time in one place doing little or wasting time
    "The high school students like to mess about in the Central Square";
    - loiter, lounge, footle [informal], lollygag [N. Amer, informal], loaf [informal], lallygag [N. Amer, informal], hang around, tarry, linger, lurk, mill about, mill around, dillydally [informal], dilly-dally [informal], mooch [Brit, informal]

Derived forms: messes about, messed about, messing about

Type of: be