Freak City is the 20th episode of Adventure Time. It was first aired on July 26, 2010.
After Finn gets cursed by the Magic Man and is turned into a giant foot, Jake and himself try to find out how Finn could use his new body for good, which ends up in them meeting others that have been cursed by the Magic Man.
Finn and Jake are walking around in the forest when they meet a hobo that is begging for food. Finn doesn't have any food, except for a cube of sugar. But Finn debates with himself about whether he should give the hobo some sugar. He says in his mind "I'm frickin' all about sugar." But he then gives the sugar cube to the hobo.