Billdip

Billdip is the slash ship between Bill Cipher and Dipper Pines from the Gravity Falls fandom.

Fanon
Billdip is one of the most popular ships in the Gravity Falls fandom and the most popular slash ship in this fanbase. On AO3 it is the most written ship in the Gravity Falls tag; as well as for both of the characters.

Most of the fans ship Bill in the human form with Dipper being an adult or an older teenager. However, still a big part of the fandom is opposed to the ship, because of Dipper being 13 years old in the cartoon and Bill over a trillion.

Fandom
FAN FICTION