The name comes from Indonesian internet slang, where ngakak describes laughing hard and lirih suggests something soft or quiet, so the clip is shared as a low-key alternative to louder reaction laughs. It circulates mainly in short-form videos, memes and chat replies, where a restrained giggle can land better than a full belly laugh. It sits alongside other animal and cartoon reaction sounds such as the laughing dog meme and gato riendo, but its human, almost whispered quality makes it useful when a creator wants a reaction that feels private rather than performed.