Turbo flutter, also called compressor surge, became a staple sound in car culture long before short-form video, heard on turbocharged Japanese and European performance cars at meets, in street racing films and in racing games. The stututu nickname comes from how enthusiasts imitate the chattering noise in text and comments. Online it spread through car edit communities on YouTube, TikTok and Instagram, where the sound alone is enough to identify a boosted build. It remains popular because it works as both a realistic engine effect and a meme shorthand for speed.