Uh-oh is a ubiquitous interjection or expression of dismay in the English language, usually said in anticipation of something bad about to happen, with the sly admittance of guilt that one may have caused something bad to happen, or perceiving that something bad has already happened. The speaker often gives vent to the expression immediately upon learning or perceiving of something that presages disaster. It is an expression usually acquired very early in life, typically as early as the toddler

Toddler

A toddler is a young child, usually defined as being between the ages of one and three. Registered nurse, midwife and author, Robin Barker, states 'Any time from eight months onwards your baby will begin to realise he is a separate person from you...

 stage. It is one of only a few words or phrases in English commonly pronounced with a glottal stop

Glottal stop

The glottal stop, or more fully, the voiceless glottal plosive, is a type of consonantal sound used in many spoken languages. In English, the feature is represented, for example, by the hyphen in uh-oh! and by the apostrophe or [[ʻokina]] in Hawaii among those using a preservative pronunciation of...

.