The doyoing has no single confirmed source; it is a generic cartoon spring boing in the long tradition of slapstick sound design, where a stretched boing signals that something just bounced, sprang back or went wrong. Clips labeled doyoing, doying and boing circulate on meme soundboards and short-video edits, usually under six seconds long. It sits comfortably next to goofy ahh sounds and other elastic cartoon effects, and it keeps getting reused because the gag is instantly readable: hear the wobble, picture the bounce.