Fiend slang for the sexual act of inserting a rod into ones urethra (especially that of a mans). Used commonly by Homosexuals, Thugs, and self proclaimed "BBC Fiends".
Term likely originates from Gay Pornography or a popular online porn gif of an elderly man inserting a metal rod into his penis labeled "method 6".
Similar to the act of Urethral Sounding, but termed specifically towards men.
Gay Man 1: Hello fellow fiends, I'm having a hard time ejaculating to Homosexual Pornography and African American Penises, should I apply Method 6?
Gay Man 2: Yes, Method 6 is my personal favorite for the act of fiending. May I join in your thug hunting session? I really would enjoy indulging in Homosexual activity.