The word agita comes from Italian-American slang, adapted from the Italian for agitation, and has long been used to describe heartburn brought on by stress as much as food. That double meaning made it a handy shorthand in comedy and everyday conversation for feeling rattled. Online, the short audio clip was stripped down to just that reaction and shared on soundboards as a quick, reusable response, spreading through meme edits and reaction videos where a single stressed word says more than a long rant.