a word that goes back to NBA 2k whenever you scored you'd get a green flag, and alot of people who play basketball are darkskin, AKA a stereotype. fn means f*ck n**ga, obviously the N word is reffered as to black people, whenever a bastket ball player or anyone scores a goal into something, you yell "green fn!" green means you made it, reffering to the green flag in NBA 2K, then fn.
by mr.southy May 26, 2024