The phrase began in October 2021 during a televised NASCAR interview with driver Brandon Brown, when a crowd chant was misheard on air as Let's Go Brandon. The clip spread rapidly online, turning the phrase into a coded political slogan and a recurring meme across social media, merchandise, and protest signs. Its chant form works especially well in short video because it is instantly recognisable and easy to loop or drop in as a reaction. Years later, creators still use it to signal political satire without spelling out the original insult.