Stututututu is an onomatopoeic name for the repeated fluttering noise associated with some turbocharged vehicles. Online, recordings and imitations of the sound became familiar through car videos, racing edits, short-form clips, and automotive memes. Creators often emphasize the rapid pulses to represent turbo performance, even when the accompanying footage is intentionally absurd or unrelated to real engines. The sound remains useful because its rhythm communicates speed, modified-car culture, and sudden deceleration without requiring spoken dialogue or additional context.