The meaning of UH-OH is —used to indicate dismay or concern. How to use uh-oh in a sentence.

Uh-oh is an expression used to indicate mild alarm or concern in response to something negative, such as a mistake.

uh–oh ... — used when you realize that you are in a bad situation, that you have made a mistake, etc. Uh-oh, we're in trouble! Uh-oh. What happened?

used in writing to represent the sound that people make when they discover that they have made a mistake or done something wrong.

There is one meaning in OED's entry for the interjection uh-oh. See 'Meaning & use' for definition, usage, and quotation evidence.

the way of writing the sound that people make when they want to say that they have done something wrong or that they think there will be trouble. Uh-oh.

uh-oh in American English (ˌʌˈoʊ ) interjection. used to signify sudden awareness of a problem or error and the resulting worry, alarm, etc. Webster's New ...

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A term used to discribe a change, mistake, or the stupidity of others of large proportion with a negitive effect. People are now useing "Text Talk" verbaly.