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Noun: boo-boo  boo boo
Usage: informal
  1. An embarrassing mistake
    "The boo-boo in scheduling resulted in double-booked meeting rooms";
    - blunder, blooper [N. Amer, informal], bloomer [informal], bungle, pratfall [informal], foul-up [informal], flub [N. Amer, informal], botch, boner [N. Amer, informal], boob [Brit, informal], goof [informal], blue [Austral, NZ, informal]

Derived forms: boo-boos

Type of: error, fault, mistake