It's from a Call of Duty video game. The game had a scene where you were at a characters funeral, and a prompt came up saying "Press F to Pay Respects". This wa

It's from a Call of Duty video game. The game had a scene where you were at a characters funeral, and a prompt came up saying "Press F to Pay Respects". This was widely criticized and mocked by players, and it spread from there to be used to either legitimately convey respect or to sarcastically mock something.