Definition of duh
- Duh, I don't know.
- Well, duh!
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'duh.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
—used in an angry or annoyed way to show that something just said is already known or is obvious
—used to show or pretend that you do not know something
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