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boo-boo

noun [C]
 
 
/ˈbuː.buː/ (plural boo-boos)

Definition

informal a mistake: Oops, I think I made a boo-boo there - I hope she's not too upset.Faults and mistakes US child's word a slight injury: Tess fell down and got a boo-boo on her hand.Injuring and injuries
(Definition of boo-boo noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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