This is Naja Lynn Williams, a 17-year-old from Houston, and her 5-year-old brother, Dellivon Markel Frazier Jr.
And Dellivon delivered.
And now, it's turned into a huge meme.
It's just so versatile.
It's the "NO" heard 'round the world.
Naja said Dellivon has a big, goofy personality and "is always like that."
Julia Reinstein is a reporter for BuzzFeed News and is based in New York.
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