Most of their lyrics are about social issues, like "Clase trabajadora", "Fuera de la Ley" and "Lucila"; while others are about political issues, such as "Pampa del Infierno" and "Nos vemos en Cutral-Co".
They also write about personal matters: "Endemoniado", "No me importa" and "A ultranza".
The name of the band is a literal translation of the classic Ozzy Osbourne song: "Crazy Train".