Bugs Bunny sings the trope namer in one of his cartoons.
Plonking this here. I don't remember anything in that cartoon that invokes or otherwise uses the trope. Sam thinks he's dying (red ink), gasps, wheezes, and falls over, and Bugs starts singing the song in question. That's a namedrop or something similar, not a use of the trope.
Coming back to where you started is not the same as never leaving. -Terry Pratchett
Plonking this here. I don't remember anything in that cartoon that invokes or otherwise uses the trope. Sam thinks he's dying (red ink), gasps, wheezes, and falls over, and Bugs starts singing the song in question. That's a namedrop or something similar, not a use of the trope.
Coming back to where you started is not the same as never leaving. -Terry Pratchett