Kopi means coffee and teh means tea in Malay, and putting them together creates koteh, a blended pun that works even without any backstory. The sound circulates as a short meme clip rather than a known quote from a film, show or song, so its appeal is the phrase itself. Online, short wordplay sounds like this are shared as reaction audio for food and drink posts, stitched into edits, and reused whenever a creator needs a quick, recognisable joke about mixing two familiar things into one silly new name.