Green FN

Green FN is a Gen Z Slang term which most people think it means "Green Fortnite" which is not true.
The term green comes from Hit game "NBA 2K". Green symbolising "Good Basketball Shot".
"FN" is in abbreviation for "Fuck Nigga".
This term is used either in NBA 2K when somebody has a good shot, or when somebody has good rizz. (charisma).

*somebody says something flirty*
"Green FN"