D'oh is Homer Simpson's signature catchphrase from The Simpsons, the long-running American animated sitcom that began in 1989. Voiced by Dan Castellaneta, Homer utters it whenever he injures himself, makes a foolish error or realises a plan has backfired. The phrase became one of the show's most quoted lines and entered everyday language as a shorthand for annoyance at one's own mistake. It later spread through television reruns, internet memes and soundboards, where the short clip is now a go-to reaction for fails.
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Homer Simpson's iconic D'oh sound effect from The Simpsons, a short frustrated groan after a mistake. Creators use it for fails and comic timing in videos.
This is Homer Simpson's trademark exclamation, a single drawn-out groan that drops in pitch as he realises he has made a blunder. It lasts less than a second but carries all of his frustration, embarrassment and self-blame in one sound, instantly recognisable even without the picture. In a video it works as a punchline on its own, signalling to the viewer that something has just gone wrong and inviting them to laugh at the mistake rather than feel sorry for the character. The delivery is cartoonish yet human, which is why it still lands decades after it first appeared on television.
