The F Dinosaur meme is a creative mashup of the 'Press F to Pay Respects' phenomenon and the internet's obsession with quirky dinosaur illustrations. Originating from gaming culture, specifically Call of Duty: Advanced Warfare, the 'F' command became a universal symbol for mourning or acknowledging a failure. When paired with a dinosaur—often depicted in a sad or salute-like pose—it adds a layer of prehistoric irony and humor to the sentiment. It is widely used to react to unfortunate situations, extinct trends, or gaming mishaps in a lighthearted way.