These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Memetic Mutation: The scene where Peppa hangs up on her friend for knowing how to whistle is very popular on tumblr due to the reaction being really good for the Reaction .GIF style of Image Macros.
Peppa playing adult music. Three kids tell her they don't like children's music, so she tells them "I like this; it's very grown-up" and playing music. Edits followed, usually replacing the song with a very inappropriate one, like Nicki Minaj's "Anaconda."