Bing Bong grew out of Sidetalk NYC, a New York street-interview series known for loud, unfiltered chats with passers-by. The phrase caught on as a playful call-and-response and spread quickly across TikTok and Instagram, where fans clipped it into edits, reactions and celebration videos. New York Knicks supporters later turned it into a victory chant, which pushed it far beyond its original interviews. Today it survives as shorthand for hype, hometown pride and a good moment worth shouting about.