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Noun: boo-boo  boo boo
Usage: informal
  1. An embarrassing mistake
    - blunder, blooper [N. Amer], bloomer, bungle, pratfall, foul-up, flub [N. Amer], botch, boner [N. Amer, informal], boob [Brit, informal], blue [Austral, NZ], goof

Derived forms: boo-boos

Type of: error, fault, mistake