The clip circulated on TikTok and soundboards as a short reaction audio, detached from any confirmed original video or creator. Its title comes from the phrase shouted about lactic acid, the burn felt during hard exercise, which made it easy to search and reuse. Creators adopted it as a scream meme for fitness content first, then for any minor inconvenience framed as extreme pain. Its length and escalating delivery helped it survive beyond one trend, since editors can trim the start or let the whole yell play for comic payoff.