Disdainful indication that something is obvious. / Indication of mock stupidity.

(chiefly US, colloquial, sarcastic) An expression or exclamation that something is exceedingly obvious or apparent, or that one would have to be extremely foolish not to realize something immediately.

(slang) The element of a situation or problem that should be obvious but may go unnoticed through human error.

plural of duh factor

empathic of duh

A surname.

plural of Duhon

A surname.

plural of Duhamel

A surname.