Okay for real, Gravity Falls is about a 12-year old boy named Dipper with a twin sister, Mabel, who move to a town called Gravity Falls for the summer. They stay there in teh summer with their uncle, "Grunkle Stan." They live in a house called the Mystery Shack, and there are many mysteries in the odd town of Gravity Falls. Together the two twin siblings, Dipper and Mabel, try to solve these mysteries.
Dipper is sophisticated and always trying to find the answer to many problems. He is voiced by a 20 year old for some reason LOL.
Mabel is his twin sister and she is more of a dummy who does nothing and is always optimistic about everything. She's funny.
Dipper: This guy's name is Robbie V and he's kind of like my archenemy.
Rumble McSkirmish: Did he kill your father?
Dipper: Well, he's dating the girl I like and he posts a really annoying amount of status updates.
*Rumble McSkirmish is one of the characters in one episode. He's a fighter from a video game that came to life :3