Sniffle sounds have become a staple of online reaction and meme editing because they convey emotion in under two seconds without any spoken words. Creators use the sound across short videos, streams, and chat replies to signal sadness, embarrassment, or mock sympathy, often in contrast to an otherwise funny scene. Its appeal lies in its simplicity: listeners instantly recognise the gesture, even out of context, which makes it easy to reuse in new jokes, edits, and reaction compilations year after year.