Originally from Call Of Duty: Advanced Warfare, after the prologue where your character gets his arm cut off by a huge ass helicopter piece and your homie being left behind to explode in that helicopter, you go to the graveyard to pay your last respects. (AW Prologue) The game tells you to pay respects with F, and that's how it became a meme
1: I hate F because they vored S
2: F killed J
3: That was I's fault, not F's.
2: SHUT
1: F sucks
2 & 3: Trueeeeeeeeeeeeeeeeeeee