Ed, Edd n Eddy is a Cartoon Network animated series centred on three friends in a suburban cul-de-sac, known for its exaggerated cartoon voices and slapstick scams. The that's not funny line fits that tone perfectly, turning a simple dismissal into a memorable reaction. As short cartoon clips began circulating on soundboards and in video edits, this kind of blunt reaction became a handy shorthand for calling out an unfunny moment. It endures because the wording is short, clear and easy to drop into almost any failed joke.
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A clip from Ed, Edd n Eddy where a character says that's not funny, used in memes and edits to react to a bad joke or awkward moment in reaction videos.
This fourteen-second clip captures a blunt, deadpan put-down from Ed, Edd n Eddy, with the speaker's voice shifting from disbelief to irritation as the line lands. The cartoon delivery is sharp and exaggerated, with clear diction and a rising, annoyed edge that makes the dismissal feel both comic and personal. Because the phrase is so direct, it works as an instant verdict on screen, cutting through a joke that missed and telling the audience exactly how the moment should be read. It feels familiar to fans of the show and instantly understandable even to viewers who have never seen it.