(used to express dismay when one has said or done something stupid or when something has gone wrong.)Compare duh.
Origin of d'oh
1950–55; later popularized by Homer Simpson, character in the animated TV series The Simpsons, who smacks his forehead while saying d'oh!
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for d'oh
Contemporary Examples of d'oh
Rep. Mary Kaptur (D-OH) has chimed in, saying the compromise gets her yes vote.How Close Is It?
The Daily Beast
March 21, 2010