The title of the episode is a parody of the term "Bully" and on the Pixar's film Wall-E.
Coincidentally, Albert Brooks voiced Marlin in Finding Nemo, and its sequel Finding Dory, which were both directed and co-written by Andrew Stanton, who also did WALL-E.
This is the same name as the villain in the Fairly Odd Parents episode The Big Superhero Wish! The original person was Francis.
Principal Skinner imitates the intro to Soul Train as School Train.
The talking train Otto hits is a reference to Thomas The Tank Engine and his voice is based on Ringo Starr's, who was the original narrator for Thomas and Friends for the first two series.
The talking train's mouth also does not move when he speaks, similarly to the model series of said show.
The scene with Homer kneeling is a reference to the movie Koyaanisqatsi.
A rare instance of a modern song playing in an episode, in this case, Daft Punk with Get Lucky.
When Marge proposes the anti-bully campaigns she quotes a song of South Park.
Miss Frizzle from The Magic School Bus TV series appears in Otto's dreams.
Errors[]
An anti-bullying law in Springfield is unnecessary, as there is a federal law against bullying.
Milhouse was seen carrying a candy cane, even though he is allergic to the red part of the candy cane as shown in "Holidays of Future Passed.”
Nabendu’s clothes are pink rather than green when Apu gets arrested.