plural boo-boos
: a usually trivial injury (such as a bruise or scratch)
used especially by or of a child

Examples of boo-boo in a Sentence

Recent Examples on the Web And because blue cats were purposely introduced in Virginia decades ago to boost recreational fishing opportunities, nobody wants to talk about how that was ultimately a boo-boo. Joe Cermele, Outdoor Life, 16 Nov. 2023 Place the 100% cotton bear in the freezer, then remove it when your little one needs to cool off or has a boo-boo. Amanda Crane, Health, 14 Aug. 2023 This new multiverse boo-boo is a potential reason to watch the Flash zoom through the timestream in another movie to try to fix it. David Betancourt, Washington Post, 17 June 2023 Advertisement On Saturday, staff members from the university’s Val G. Hemming Simulation Center will be painting facsimiles of various bug boo-boos, from spider bites to the rash from the bite of a tick carrying Rocky Mountain spotted fever. John Kelly, Washington Post, 7 June 2023 No one on Friday was caught in thicker fog than Clifton, who is both the Bruins’ hardest hitter and too often their biggest boo-boo maker. Kevin Paul Dupont,, 30 Apr. 2023 Poised to even it, 1-1, the Bruins for a second day in a row watched their boo-boo blow up big time. Kevin Paul Dupont,, 12 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'boo-boo.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


probably baby-talk alteration of boohoo, imitation of the sound of weeping

First Known Use

1932, in the meaning defined at sense 1

Time Traveler
The first known use of boo-boo was in 1932

Dictionary Entries Near boo-boo

Cite this Entry

“Boo-boo.” Dictionary, Merriam-Webster, Accessed 19 Apr. 2024.

Kids Definition


plural boo-boos
: a usually small bruise or scratch especially on a child
: a foolish mistake
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