This page contains trivia for "The Ungroundable". Remember, trivia must be factual, provable, and it is always best to cite your source for not-so-obvious trivia. If you would like to dispute a trivia point, please discuss it in the article comments.
While not an outright parody, the FAQ at South Park Studios has confirmed this episode is a spoof of the Twilight series by Stephenie Meyer and its portrayal of vampires. The series itself is mentioned in passing by the "sparkly" female vampire.
The scene where the boy is asking where his ball is bears a resemblance to the scene where Craig was asking for the football in the episode "The List".
The Goth Kids are mistaken for Vampires in this episode. They are mistaken for "Emo Kids" in "Goth Kids 3: Dawn of the Posers". This is in reference to how "outsiders" often find it difficult to distinguish between these groups.
Henrietta's lips look different in this episode. They were bigger and had a different shape.
The kids are playing Call of Duty: World at War on the school's computers, but the gameplay footage is from the Xbox 360 version of the game.
Towards the end of the episode, where Butters comes home from the mall, Stephen Stotch asks his son, "Would you mind telling me why there's Rice-A-Roni in my coffee?!" He illustrates his point by pulling a spoonful of pasta from his coffee mug, but while holding the spoon in his left hand, another reappears in the mug. When he replaces the spoon, there is still only one in the coffee mug.
Butters runs into the computer lab from the right, but when the camera zooms in, it shows him coming from the left.
When Henrietta is shown in the office with the other Goth Kids, she is shown wearing lipstick. When she finishes talking her lipstick is gone. After she and the Goth Kids leave the office she is shown wearing lipstick again.