Similar to the stereotypical 'Dear John' relationship termination letter, 'Yo Faero' is used as an introduction to the writer's miscellaneous resignation from a job, relationship or life itself. It is a term used to goad the receiver into action against the writer, and can be interpreted as situational suicide. There is no return from the 'Yo Faero' note; finality is absolute and in order to use the term, the writer must truly be willing to end his or her career/marriage/life.
"Yo Faero, I am terminating my employment here"
"Yo Faero, I am terminating this friendship"
"Yo Faero, I am terminating our child"