In this episode, Gumball and Darwin befriend Clayton, the compulsive liar, after he is cornered by a bully named . The plot revolves around the "contagious" nature of Clayton's lies. Plot Highlights :

“"The Skull" is very interesting among the community. While most people don't hate it, they find it to be very boring. Many people will blame Clayton for the episode's turn out, finding him to be uninspired...” Reddit · r/gumball · 8 years ago

The episode title actually refers to two separate segments from The Amazing World of Gumball . While "The Skull" is officially Season 2, Episode 7, " The Bet " is Season 2, Episode 14. The Skull (S2E7)

To stop the lying, Gumball and Darwin wear shock collars that electrocute them every time they tell a lie.

Gumball uses Bobert for petty, humiliating pranks rather than solving world problems.

The situation escalates when Gumball casually wishes Principal Brown would "get lost," leading Bobert to literally expel him to the woods.