Walt Kelly, in the great comic strip Pogo, did quite a lot of this kind of thing, from writing short snippets of dialog (for example, when the French skunk, Mam

Walt Kelly, in the great comic strip Pogo, did quite a lot of this kind of thing, from writing short snippets of dialog (for example, when the French skunk, Mamselle Hepzibah asked the turtle to play "Fly Tough Zee Bumbly Beans" on his lute) to extended songs and poems (for example, the multiple verses of the "Crispness" carol, "Deck Us All With Boston Charlie"). Sometimes the substitutions he made were commentaries on social or political or cultural topics. Sometimes they were just bits of silliness. I grew up reading the strip from before I went to school. My whole family loved it. I passed the game of "anguish languish" down to my kids, too. On long drives we sometimes took turns inventing mangled verses of familiar songs or poems. Naturally, Ladle Rat Rotten Hut is an old favorite.