The Fairly OddParents Season 4 Episode 15

Timmy tried to win the heart of his one true love, Trixie by wishing that he was the funniest guy on Earth but when he finds out that Cosmo’s man eating plant he gave her is going to eat her at 12 midnight he tried to un-wish his wish but Wanda and Cosmo is too busy laughing to take Timmy seriously.