This meme sound is based on the vocal refrain from “Scatman (Ski-Ba-Bop-Ba-Dop-Bop)” by Scatman John, released in 1994. The hook spread online because its rapid scat syllables are easy to recognize, quote and remix in short clips. It remains popular in meme culture, TikTok-style edits and low-context shitpost videos where a quick burst of goofy energy is the whole joke. It is often typed phonetically in different ways, which is why search variants for the sound are so common.