The Fairly OddParents S06E19 - The Fairly Oddlymipics

Timmy, who is tired of being the "guinea pig" of the Fairies, Pixies, and Anti-Fairies, wishes for a competition to see which one of them is the best magical creature. Jorgen does not let any fairy compete, however, because he is the strongest. When he wins the first five medals, Anti-Cosmo and HP knock out Jorgen. Timmy becomes the fairies' trainer and makes a bet: if Anti-Cosmo wins, Timmy will be his godchild; if HP wins, Timmy will work for him forever; and if Timmy wins, he will force HP and Anti-Cosmo to do something very bad. The fairies win, and Timmy says "nothing" for what Anti-Cosmo and HP do. Timmy says he learned that cheaters only cheat against themselves. It turns out to be a dream for Scott Hamilton (who was previously co-hosting the games with Timmy), because when he says what Timmy said, Juandissimo and Cupid give him a cheetah (a running gag involves that when anyone says cheater on the field or somewhere else other than the stands, Cupid gives them a cheetah).