Bartholomew JoJo "Bart" Simpson, also known as "El Barto," "The boy" , and "Bartman," is the tritagonist of The Simpsons. He is the mischievous, rebellious, misunderstood and "potentially dangerous" eldest child of Homer and Marge Simpson, and the older brother of Lisa and Maggie. Bart is a self-proclaimed underachiever who is constantly in detention. He is easily distracted. His penchant for shocking people began before he was born: Bart "mooned" Dr. Hibbert while he performed a sonogram on Marge, and moments after being born he set fire to Homer's tie (Marge saying that he could not have done it on purpose because he was only ten minutes old). Bart's first words were "Ay Caramba".