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The clip is credited on its file metadata to Seth MacFarlane performing a Gregory Peck impression linked to Transformers, and it has circulated online mainly as a short soundboard clip rather than as a widely documented scene. Its appeal rests on MacFarlane's reputation as a prolific voice impressionist, which makes the Peck-style delivery instantly recognisable even when the word Donteflon itself is invented nonsense. Shared in meme edits and reaction compilations, it survives because the joke needs no context: a solemn voice, a serious setup, and an absurd payoff.
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Seth MacFarlane does a Gregory Peck impression saying he has been practicing Donteflon, a deadpan voice clip used for impression jokes and parody edits.
In this fifteen-second clip, Seth MacFarlane slips into a slow, gravelly Gregory Peck voice and deadpans the line about having been practicing Donteflon, stretching each syllable with old-Hollywood gravitas as if he were delivering a serious dramatic monologue. The humour comes from the mismatch between that solemn, stately delivery and the nonsense word at the centre of the sentence, which lands like a punchline precisely because it is treated so seriously. Listeners tend to pause, then laugh at the commitment to the bit, making it an easy drop for a moment that needs dry, confident absurdity rather than loud energy.
