The music that plays over the title card is similar to Toccata and Fugue in D minor, BWV 565 by Johann Sebastian Bach.
Timmy Turner mentions the Walt Disney character Winnie the Pooh when he throws the trash bag on the floor, drop his homework book, and spit out his toothbrush.
Timmy doing the opposite of what his parents tell him to do when the wish is in effect.
Timmy or Cosmo noting to Wanda about something that she, at this point, would normally do when something bad is about to occur and Wanda denying she will do it this time.
Wanda going crazy when things slowly start to go awry.
People saying blah blah blah in their sentences when talking about something that almost always normally occurs in a situation.
People (especially men) putting make-up on.
When Mr. Crocker is in the mud, he shouts FAIRY GODPARENTS!, but original captions say FAIRY BAD PARENTS!. Viewer Jack E. Putterman, of West Hartford, CT, is always cracked up whenever he thinks about this closed captioning error. The BAD PARENTS part of the text even refers to The Bad Parent Hunter, which Timmy's parents were watching in this episode.
After Timmy wishes to disappear the waves, you can see that when Mr. Crocker is about to fall on the Make-Up Factory. When said event occurs, he is bigger than the factory (see picture).