* EarWorm: If you listen, you might as well not even try to get the "Na na na na" theme out of your head.
* FunnyAneurysmMoment: "Being an understudy is like being Princess Di: lots of fringe benefits and no drawbacks!"
* GirlShowGhetto: One of the first childrens' TV shows to break out of it.
* HilariousInHindsight:
** In [[http://www.huffingtonpost.com/2011/07/30/clarissa-explains-it-all-predicts-cowboys-and-aliens_n_914114.html this clip]], Ferguson watches ''Film/CowboysAndAliens''.
** Clarissa making Ferguson and then herself disappear in the intro can come off as this considering how much magic Melissa Joan Hart would practice in [[Series/SabrinaTheTeenageWitch her following show]].
** The series ended and ''Clarissa Now'', its attempted CBS spinoff, would've begun with Clarissa becoming a journalist, a career path Sabrina would also take.
** There was one time when Ferguson told Clarissa that he played ''VideoGame/MegaMan10'' in this episode.
* MemeticMutation: Almost no one remembers much about the show anymore besides the title. Probably because to this day, TV shows ''still'' make shout outs like "Yeah, Clarissa, explain it all!" frequently.
** Music/MindlessSelfIndulgence has a song called "Clarissa," which includes the classic line "If you're so smart, explain this, Clarissa!"
** Another band called The Paramedic has a song called "Clarissa Didn't Explain This," which in all actuality has absolutely nothing to do with the show.
** Even Melissa Joan Hart herself makes a play on the show's title in the title of her autobiography, "Melissa Explains It All."
** Sam's {{Leitmotif}}. *''brrrrriiiiiiing''*
* RetroactiveRecognition: Michelle Trachtenberg as the little girl Clarissa babysits in "[[ExactlyWhatItSaysOnTheTin Babysitting]]".
* UnintentionallyUnsympathetic:
** While most of her problems with Ferguson were pretty valid, there were a couple instances where ''she'' seemed like a bully. For example, in one episode, Ferguson seeks her for advice on how to properly date a girl he has a crush on. She deliberately gives him the most outlandish suggestions she can think of to sabotage his relationship with her. Granted, this backfires, but it's still a pretty mean and bullish thing to do.
** There's also a dream sequence in one of the final episodes in which Clarissa kills Ferguson (really!), and he comes back as an angel and/or devil. They only hint at it ("the man upstairs" and "the great beyond"), but in the dream, he is dead, their parents fall apart (her father becomes a hippie who constantly mourns for his dead son and her mother takes up smoking) and Clarissa seems like she is barely concerned. This might be somewhat justified by it being AllJustADream, but she acts nicer when she wakes up.
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