Green FN

Green FN is a popular term in 2K but can be used anywhere else. It originally relates to a feature in the game, green, but you fail to use it properly. The FN part means f-ing. In other games, however, it can be used in these ways:
To say someone is doing bad, or selling a game.

To say someone annoys you.

“Remember that one Green FN shot you made?”
“Shut up, my finger slipped. I could clap you in a 1v1 easily.”

Sold

Sold, along with sell, or selling, can be slang in video games or real life. It is a way to say someone is doing back or horrible in a certain thing, and is dragging anyone else down (if they are playing a team game.)

“Yo, bro, stop selling! Block, parry, dodge.”
“My keyboard is crustier than my grandma, I can’t!”
“You sold this run, I am unfriending you in Fortnite.