d'oh

or doh

[ doh ]
/ doʊ /

interjection

(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