Gravity Falls

Gravity Falls is a Disney Channel show created by Alex Hirsch.

Plot:
Gravity Falls is a show about the two twins Dipper and Mabel Pines who go to Gravity Falls, Oregon, to visit their Great Uncle Stan, who runs a tourist attraction called the Mystery Shack.

Soon Dipper gets a mysterious book and starts to uncover Gravity Falls' mysterious secrets, like weird creatures and strange occurences.

Fanbase:
Gravity Falls is very popular, but among public opinion, it is very rare to find a person who knows what it is. Besides that, however, fans can't get enough of Gravity Falls.

Within the first twelve episodes, Gravity Falls already has at least a billion fan art pictures, demotivantional posters portraying them, and captioned pictures. The codes in there were also very common, and some people get too much into them.

Paper Jam Dipper:
Even though he died before the end of the episode he appeared in, this guy is a very common subject for fans to use for art and such.

Crossovers:
There are also many crossovers. The most popular is ParaPines, which is a crossover of Gravity Falls and ParaNorman, and was concieved because of their close release dates and similiar plots having to do with paranormal occurences.

It is not uncommon to see other crossovers having to do with Gravity Falls and something similiar to it.

Dipper Goes To Taco Bell:
Dipper Goes To Taco Bell is the most famous Gravity Falls fanfic (sadly). It was so gory and bad that it was even taken off the website it was on. The plot has to do with Dipper having a craving for mexican food, so he goes to the Gravity Falls Taco Bell. While there he suffers from diarhhea, accidently cuts himself, and dies. When Mabel finds out of her dead brother, a worker kills her, too, and gets rid of the bodies by putting them in tacos.