to commit suicide by cutting one's own throat

(literary) a friendship so deep that one would die for the other; friends who have shared life and death or deep hardships

A friendship between people who are willing to die for one another; a bond of loyalty that lasts until death

(literary variant) to slit one's throat or commit suicide by cutting the neck

to commit suicide by cutting one's throat

A friendship where friends are willing to die for one another or face extreme hardships together.

to prove one's sincerity or integrity by cutting one's throat