Generic animal sounds like this pig oink have long been a staple of sound libraries, cartoons and comedy sketches, where a single grunt can stand in for a whole farm scene. Online, short animal noises became popular on soundboards and in meme edits because they are instantly recognisable without any words. The pig oink in particular is often used to suggest greed, messiness or silliness, and its short length makes it easy to reuse across TikTok clips, YouTube shorts and reaction videos.