The sound comes from Vietnamese internet meme culture around Kha Banh, whose real name is Ngo Ba Kha and whose flamboyant videos made him widely shared online in the late 2010s. The phrase ai dua banh ve became a quotable joke among fans and editors, detached from its original context and reused as a chant in remixes and short clips. Its spread follows the pattern of many regional memes moving through Facebook, YouTube and TikTok, where a familiar voice line gains new meaning each time it is placed over an unrelated fail or celebration.