“Bora Bill” is a Brazilian viral audio that spread widely through short-form video, especially TikTok, Reels and meme compilations. The phrase comes from a street-style recording in Brazil where a man loudly calls out “Bora, Bill” and related lines, which viewers turned into a repeatable joke. Its catchy rhythm and strong delivery helped it travel beyond Portuguese-speaking audiences. Online, it is still used as a quick hype cue in the same broad meme space as goofy ahh sounds and bruh-style reaction clips.