Yodeling is a traditional vocal technique from the Alpine regions of Central Europe, where singers rapidly switch between chest voice and falsetto and where herders once used the calls to communicate across valleys. The sound later became a shorthand for mountain life in cartoons, comedy and advertising, with its warbling melody instantly signalling something cheerful, rural and slightly absurd. Online, short yodel clips circulate as reaction sounds and meme audio, often dropped into videos for an unexpected musical gag rather than for any authentic folk performance.