The line comes from South Park's 'A History Channel Thanksgiving,' a season 15 episode that aired in 2011 and featured actress Natalie Portman as a guest star. In the years since, short spoken moments from the episode have circulated on soundboards, where this clipped refusal became a favorite for rejecting jokes, dares and hot takes. Its popularity comes from the familiar voice and the rhythm of the hesitation: the drawn-out pause makes it quotable, while the flat ending makes it perfect for quick comedic timing in memes, edits and gaming clips.
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A short South Park sound effect of Natalie Portman saying ummmmm no during A History Channel Thanksgiving, often used for sassy rejections in memes and edits.
The clip is a brief spoken line lifted from a South Park Thanksgiving episode, where Natalie Portman guest-stars and hesitates with a drawn-out 'ummmmm' before cutting herself off with a flat 'no.' Her voice is bright and playful at first, then shifts into a dry, deadpan refusal, which makes the moment land like a comedic punchline. In videos, the pause builds anticipation while the sudden 'no' delivers the payoff, giving creators a lighthearted way to shut down bad ideas, over-the-top demands or awkward questions without sounding mean. It feels cheeky rather than harsh, so it keeps the joke friendly.
