“This is named after the random musical number sung by a big-lipped alligator towards the end of the film All Dogs Go to Heaven. A scene that comes right the fuck out of nowhere; has little to no bearing whatsoever on the plot; is WAY over the top in terms of ridiculousness, even within the context of the movie; and after it happens, no one ever speaks of it again.”
— The Nostalgia Chick, explaining the term after using it to describe the singing goanna scene from FernGully
(TVTropes)
