Dirty Pranking Number 2 - S1-E6
Trivia: In 2005, a group of Texas cheerleaders were arrested for defecating on a pizza and trying to give it back to a Domino's Pizza delivery man. They later admitted that they'd gotten the idea after seeing this episode. Comedy Central had no comment other than, "Oh, no."
Trivia: Apparently, when Tara Strong's mother heard her daughter performing the song "A Black Chick's Tongue", she started crying. But not out of shame; she thought it was "beautiful."
Trivia: The post-credit clip showing the swinging and bucking bridge was taken from a live recording of the Tacoma Narrows Bridge collapse on November 7, 1940, due to what is called aerolastic flutter.
Answer: She was in the show 90210, so I'm guessing it's a reference to something she did in the show?