Michelangelo's persona became strongly established in the 1987 animated series. He was often seen as a "Party Dude", which, though accurate in the 1987 series (which gave him this title in the theme song), accounts for only part of his personality otherwise. As the "party dude", he usually didn't have much input in the team's plans, although he was still just as active as his brothers. He typically spent much of his time joking and socializing with other characters. He is most associated with the "Cowabunga" expression that became a pop culture phenomenon.