Peacock calls have long been used online as a shorthand for vanity and showing off, drawn from the bird's real display behavior of fanning its tail and calling to attract attention. Short clips of the strut and squawk spread through meme soundboards and short video edits, where the exaggerated pride of the animal maps neatly onto human bragging. It stays popular because the sound is instantly recognizable, needs no context, and turns an ordinary walk or entrance into a joke about confidence and flamboyance.