The thirteenth episode of the Simpsons Eighth Season. It has someone named Shary Bobbins, who becomes the Simpson's nanny, after Marge Simpson looses her hair for an unknown reason. the episode is a reference to Marry Poppins, since Shary Bobbins is based on Marry Poppins and the episode title is a spoof based on the word Supercalifragilisticexpialidocious
M:Well look at this, the episode Simpsoncalifragilisticexpiala(Annoyed Grunt)cious is on tonight!
S: Is the episode title a spoof on that word, whatever it is?
M: You mean Supercalifragilisticexpialidocious? Yes it is.
S: Great, stupid repeat episode.