Supergroverfragilisticexpialimonstrous

Supergroverfragilisticexpialimonstrous is Grover's new song, and it was a parody to Mary Poppins' song called Supercalifragilisticexpialidocious. Grover invents that song but he gets grounded by his father for inventing it and singing it. Grover sings it along with his friends Cookie Monster, Barney the Dinosaur and Elmo, he also sings it in class, and he yells it and gets arrested.