This clip comes from the classic TV sound effects era, the kind of springing bounce that decorated vintage cartoons and slapstick sketches when physical gags ruled television comedy. It is a designed spring effect, likely recorded from a real coiled spring and stretched into a flexible, continuous bounce. Sounds like this spread through sound libraries and later through soundboard sites and meme edits, where the boing became shorthand for anything bouncy, wobbly or elastic. Its staying power comes from that instantly readable cartoon language: one wobble and the viewer knows something just bounced.