No clear original source is confirmed for this clip, so its life is mainly online as a short soundboard and edit effect. Short plop sounds have long been used in cartoons and family television to mark soft impacts without making a scene feel harsh, and this baby themed version leans into that tradition. Creators share it for quick visual gags where timing matters more than volume, and its two beat pattern makes it easy to recognise, loop in a caption, or drop into a compilation.