Sounds transcribed from Cyrillic laughter like hahaha have circulated for years in Russian speaking online communities as text slang for laughing, equivalent to English lol or haha. Short laugh clips using this spelling spread on soundboards and in meme edits because the repeated ha syllables are instantly understood across languages. This version is used less as a natural laugh and more as a stylised reaction effect, valued for its brevity and for signalling over the top amusement in chats, streams and short videos.
Об этом звуке
Short 0.9 second Russian laugh sound effect, written as khakhkhakha from Cyrillic hahaha. Popular as a quick reaction laugh for memes and edits.
This is a very short burst of laughter transcribed from Russian Cyrillic as hahaha. It sounds like a fast, high pitched person laughing hard at something, delivered in one quick breath. The clip is abrupt and cuts off suddenly, which is what makes it funny in edits. Viewers hear it as an instant, slightly unhinged reaction to a joke, fail or awkward moment, adding a sense of exaggerated amusement without any words to distract from the visual gag.