
Many years before Disney made Mary Poppins, Alan Holmes and His New Tones recorded Patricia Smith (a.k.a. Gloria Parker) and Don Fenton's Supercalafajalistickespeealadojus. That seems a lot like Supercalifragilisticexpialidocious (the Disney title).
When Disney was sued for allegedly stealing the the earlier title, it successfully defended itself by claiming that Supercalafajalistickespeealadojus (a.k.a. Supercalifragilisticexpialidocious) was a common slang word.
Yeah right!! People might think Disney won because it had lots of money.