It's used unironically/noncomedically as a final banjo lick in many bluegrass picking songs (the article does mention this). I heard it first there and I've al

It's used unironically/noncomedically as a final banjo lick in many bluegrass picking songs (the article does mention this). I heard it first there and I've always assumed it originated from American folk music. Interesting that it's quite a bit older/more general.