Vicky's Diary is seen in A Bad Case of Diary-Uh!. It is a purple journal where Vicky writes her deepest, most darkest secrets in. One day, Vicky uses a truth serum on Timmy to make him blurt out his secrets--he is disgusted by bare feet, clowns scare him, he is allergic to oranges, and his fish are fairy godparents. Luckily, Vicky didn't seem to hear the last part and the next day at school, she and all the students are celebrating "Bare Feet Orange-Juggling Day." Seeing that Timmy wants to exploit Vicky's secrets like she did with him, Cosmo says that a girl usually writes her secrets in a diary, so Timmy wishes for Vicky's diary so he can use her secrets to make her life miserable. Cosmo and Wanda try to stop him from reading it and inform him that a girl's diary is special place for her