\ˈdō \
variants: or doh

Definition of d'oh 

used to express sudden recognition of a foolish blunder or an ironic turn of events

First Known Use of d'oh

1945, in the meaning defined above

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English Language Learners Definition of d'oh

—used when you realize that you have just said or done something stupid or foolish

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WORD OF THE DAY

something that serves to warn or remind

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