Like many Indonesian soundboard phrases, 'ko tepengaruh lah sama dia' circulates as a shareable reaction clip rather than a line from a known show or film. Its exact original recording is unclear, which is common for user-uploaded meme audio. It spreads through short-form video edits and meme soundboards where creators need a quick, dismissive response in local slang. The phrase itself is everyday Indonesian, meaning not to be swayed by someone else, and that relatable attitude keeps it useful for comedy skits, commentary and duet-style reactions.