That kid was right. They were using me. I'll show them whos a dumb clown.
~ Flappy Bob putting on his clown clothes

Flappy Bob was a recurring character of The Fairly OddParents and one of the main characters and a (former) supporting antagonist turned deuteragonist in 2005 movie School's Out! The Musical. He is the original founder of Flappy Bob's Camp-Learn-A-Torium (which was shown in a few other episodes).

37 years ago in Kansas, his clown parents shot him out of a train with a rocket when he was a baby for his safety because it was about fall off a bridge. Although, the train was actually on a safe track. He was found and "raised" by H.P. and Sanderson for the next 37 years. They often taught him about boring being fun and essential in everyday life, which included him winning the love of an unknown woman (it's unknown if he married her or not) and graduating from Harvard Law School with money and blueprints for developing Camp-Learn-A-Torium thanks to the Pixies.

Flappy Bob appears at the town meeting and recommends them to attend his all-summer long camp. Shortly afterwards, Timmy wishes for kids to rule the world . Enraged, Flappy Bob confronts Timmy about it. H.P. and Sanderson dropped by and introduced themselves to Flappy. He signs the Pixie contract for him to take control of the world with the free pen Timmy gave him earlier. At Camp-Learn-A-Torium, Flappy overhears the Pixies and realizes that he had been used for the past 37 years. He  appears in his clown outfit and decides to work with Timmy into bring fun back to the world, which brought H.P. and Sanderson down to earth. After pointing out the loophole in the Pixie contract, H.P. nullifys the contract and world went back to normal. Flappy was able to reunite with his parents and was seen singing with everyone else at Camp-Learn-A-Torium.

The Fairly OddParents Villains

Main Villains
Vicky the Babysitter | Denzel Crocker | Francis | Anti-Cosmo | Anti-Wanda | Jorgen Von Strangle | Foop | Dr. Bender | Head Pixie
Supporting Villains
Trixie Tang | Veronica | Tootie | Remy Buxaplenty | Dark Laser | Wendell Bender | Sanderson | Mama Cosma | Norm the Genie | Princess Mandie | Happy Peppy Gary and Betty | Doug Dimmadome | Imaginary Gary | Doidle
One-time Villains
Evil Jorgen | Dr. Snipowitz | Benedict Arnold | The Seemingly Harmless Plant | The Turnbaums | Ricky | The Sewer Gator | Vic | Shallowgrave | The Gigglepies | Tom Sawyer | The Platinum Princess | Vicky the Kid | Evil Babysitters | Pumpkinator | Maryann | Pierre | Sammy | Flappy Bob | Ms. Doombringer | Big Brain | The Eliminators | The Destructinator | Peg-Foot Vicky | Jack-O-Bots | M.E.R.F. Agents | The Darkness | Robot Vicky (II) | Lauren Ledergerber | Alyssa | B.R.A.T. | Mr. Ed Leadly | Big Dave | Greeny | Lucky | Nega-Timmy
Comic Book Villains
Nega Chin | Bronze Kneecap | Spatula Woman | Titanium Toenail | Country Boy | Gilded Arches | Short-Fuse | Copper Cranium | Golden Gut | Iron Lung | Brass Knuckles | Iron Maiden | H2Olga | The Baby Shredder | Doctor Crocktopus | Bull-E | Hair Razor | Chattie