Fanboy and Chum Chum are big fans of any thing that has to do with science fiction and fantasy, and they were superhero costumes with their underwear on the outside of there pants so people can see.
Their lives are filled with adventure, from Fanboy's teacher turning into a scary zombie to an ice monster operating the machine at the Frosty Mart that happens to be a store wear they get there Frosty Freezey Freeze drinks.
Their Friend Kyle usually tags along on their escapades. Kyle happens to be a real wizard, but Fanboy and Chum Chum are oblivious to his mystical powers, although they live in a fantasy world.
Fanboy's personalty is Fanboy is free-spirited and is ready for anything. He and Chum Chum are always doing lots of stuff with each other, and often those boys have fun together.
They have some friends, and will occasionally be strong and fearless. Like Chum Chum, Fanboy enjoys Frosty Freezy Freezes is there favorite frozen drink and there favorite superhero, Man-Arctica), Boog That works at the Frosty mart is a bully.
Fanboy is the leader of his main group of friends: Chum Chum, Kyle, Oz, and Yo. Fanboy is extremely hyperactive and he loves to eat candy.
Some people hate Fanboy like Lenny and Kyle. He and Chum Chum unintentionally annoy them often, and even though they respond in a bad way, Fanboy still thinks of them as friends.
Fanboy claims to be good with animals, and even knows how to care for them. However, he has a tendency to get angry once in a while. If he is bullied and tormented enough, he becomes fused and demands it to stop. When he becomes sad enough, his cape and the spikes on his gloves droop, and his body's brightness starts to darken.
Chum Chum's personalty is As Fanboy's best friend, Chum Chum is full of fun all of the time. Chum Chum is easily fooled, and it seems he likes to love chocolate covered raisins, and he has a squeaky voice just like Fanboy. Yo has a crush on Chum Chum, because he is 'Adorable', 'Cute', And 'Chum Chummy'. Fanboy Yo always follows Chum Chum he is Chum Chum's Body guard but feels sorry for her sometimes.
Chum Chum Happen's to be the youngest member of Fanboy's main group of friends, and dislikes being the smallest person.
However, Chum Chum knows that he is not the only small person. He also has a cousin named Muk Muk, who is the same size as Chum Chum, and looks just like him, but she jsut says her name Muk Muk she does not talk.
Chum Chum can also stretch out really tall, like he's standing strong. Chum Chum is smarter than Fanboy always and points out the stronger thing than what he said. Chum Chum even looks up to Fanboy at times, and hopes he's just the same as him. He's also loyal and and he stands up for Fanboy Always if he get bullied or no matter what.
I do not Thin Chum Chum is Smarter then Fanboy I think they are smart in different ways Chum Chum is smarter in one way Fanboy is smarter in another way.