The sound comes from JoJo's Bizarre Adventure, where Noriaki Kakyoin repeatedly says rero rero while rolling a cherry on his tongue. The scene, from the Stardust Crusaders storyline, became one of the series most quoted moments because the delivery is so earnest and strange. Clips and imitations spread widely through anime fandom and meme videos, where the phrase is detached from the original context and reused as shorthand for smug teasing. Its short length and instant recognisability keep it in regular use for edits and reaction posts.
About this sound
Rero rero rero is the cherry licking sound effect from JoJo's Bizarre Adventure, used in anime edits and memes for awkward or smug reactions.
The clip is a short loop of the repeated rero rero rero sound, imitating someone noisily licking a cherry over and over. Each syllable is wet, exaggerated and evenly paced, turning a simple eating noise into something deliberately uncomfortable and funny. It lasts only a couple of seconds, which makes the repetition feel even more intense. Viewers instantly recognise the smug, teasing energy behind it, so the sound works as a punchline on its own, signalling playful obsession, awkward confidence or a joke that has gone slightly too far.