What does booboo mean?
A booboo is an informal word for a foolish or careless mistake — the kind of minor, often slightly embarrassing blunder that is usually easy to put right. It carries a light, forgiving connotation: calling something a booboo rather than an error suggests good humour rather than serious fault, which makes the word common in casual conversation and self-deprecating remarks. In American English, especially when speaking to children, booboo has a second, tender sense: a small injury such as a scrape or bump, famously soothed by kissing it better. The word arose through playful reduplication in the twentieth century, echoing "boob," itself a slang term for a blunder. Because of its nursery associations and jocular tone, booboo rarely appears in formal writing, but its warmth and mildness make it a useful way to acknowledge human fallibility without assigning blame.
A silly or careless mistake; a blunder.
"Leaving out the decimal point was a costly little booboo in the contract."
Informal and humorous; implies the mistake is minor or forgivable.
A minor injury, such as a cut, scrape, or bruise; used chiefly in baby talk when speaking to young children.
"She fell off her bike, but it was just a booboo on her knee."
Chiefly American English; usually hyphenated as "boo-boo" in this sense.
Regularly pluralized; in the injury sense the hyphenated spelling "boo-boos" is common.
"The audit uncovered several booboos in last quarter's accounts."
One of the gentlest words for failure in English — a booboo is the kind of mistake you can kiss better.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of booboo
Booboo emerged through playful reduplication, most likely in American English during the early twentieth century, from "boob," an older slang term meaning both a stupid mistake and a foolish person. The doubled form softens the original, giving the word its gently comic character. Its second sense, denoting a child's minor injury, grew out of the same baby-talk tradition of reduplicated syllables and became widespread in mid-twentieth-century American speech.
How booboo is actually used
Informal and mildly humorous; "booboo" for a mistake suits light or self-deprecating contexts and would be out of place in formal writing. The injury sense is chiefly nursery register, used when talking to or about young children, and is typically spelled with a hyphen as "boo-boo" in American usage.
Easily confused with booboo
"Boob" can also mean a stupid mistake, but it is more commonly known as slang for a woman's breast, whereas "booboo" refers only to a mistake or a minor injury.