Person 1: Hey man say the longest word you can!
Person 2: Alriight… Supercalifragilisticexpialidocious!
Person 1: oh wow.. thats long..
Person 2: I know right.
the definition of supercalifragilisticexpialidocious is a song from Mary Poppins. she uses it in a sort of silly way but you can also use it in a serious way.