From a prompt in the PC version of the 2014 video game Call of Duty: Advanced Warfare which directs the player to press the F key to touch a fallen soldier's coffin during a funeral cutscene.

Press F to pay respects. "Press F to pay respects" or "Press to pay respects" is an Internet meme that originated from Call of Duty: Advanced Warfare, a 2014 first-person shooter in Activision's Call of Duty franchise.