Fussy baby noises are a staple of online reaction culture because the sound is instantly recognisable without any words, making it easy to drop into short videos, streams and memes. This version is tagged for the VTuber Filian community, where exaggerated baby-like fussing is often used to tease playful tantrums and over-the-top reactions during live streams. Because the clip is only a few seconds long, it works as a quick audio punchline rather than a full scene, and creators keep returning to it whenever they want to label someone as being fussy in a lighthearted way.