Definition of boo-boo in English:

boo-boo

Syllabification: boo-boo

noun (plural boo-boos)

informal
1A mistake: you could make a big boo-boo if you leap to any drastic conclusions
More example sentences
  • You could make a big boo-boo if you make a roast beef dinner and they're a vegetarian,’ she said.
  • Not before Richard makes a big boo-boo, however.
  • Here's a list of some of the biggest boo-boos that pilots make with aviation insurance
1.1North American A minor injury, such as a scratch: there is no one to kiss the boo-boo!
More example sentences
  • Everyone says kisses make boo-boos feel better and go away.
  • Whether they're helping their kids with a science project, kissing boo-boos or waking up for midnight feedings, many modern-day dads are deep in the parenting trenches.
  • ‘In that case, maybe you should kiss all my boo-boos,’ I grinned devilishly.

Origin

1950s (originally US): reduplication of boob1.

Definition of boo-boo in:

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