Green Fuck Nigga or more commonly known as Green FN is a viral meme that can have several different meanings. It is particularly used in the context of basketball as Green means excellent shot timing on the shit ass game 2k. It is used to ironically comment on basketball players missing or showcasing a particular move.
"Look at how this dumbass boy bricked this shot, he really said Green FN!".
Green FN is used in basketball and nba2k when you swish a shot. The FN is short for Fucking Nigger.
Person1 *swishes a shot* Green FN!
Person2 That was really green Fucking NIGGER!!!!! just like jamal