Word used all the time by Young People
verb • To tear off, cut carelessly or amputate.
"¿Tienes alguna idea de cómo reducir la delincuencia?" "¡Tenemos que mocharle las manos a los ladrones!"
"Do you have any ideas on how to reduce crime?" "We have to cut off thieves hands!"
5 out of 7 Spanish, Castilian speakers have heard this