who says ay caramba in the simpsons?

best answer
¡Ay caramba! is a phrase commonly used by Bart Simpson. It is his second most commonly used catchphrase behind Eat my shorts!. ¡Ay caramba! were also Barts first words. He first said it when he was a baby and saw Homer and Marge in bed. Bart uses the phrase to express surprise emotional distress or discomfort.