“Oi oi baka” spread mainly through TikTok and short-form meme edits as a playful audio for anime-coded humor. The phrase caught on because “baka” is familiar to many viewers from anime and manga fandom, making the clip instantly readable even in very short videos. Creators often use it for teasing reveals, chaotic transitions and ironic character edits. Its staying power comes from how easy it is to recognize, lip-sync and drop into fast visual jokes without needing much setup or context.