The Stop Cop meme features a law enforcement officer holding up a hand to signal a halt, serving as the ultimate reaction image for 'stopping' someone in their tracks. It is widely used across platforms like X and Reddit to call out bad takes, pause a fast-moving thread, or humorously signal that someone has 'gone too far' with a joke. The image acts as a universal visual shorthand for 'Hold on' or 'Illegal opinion detected,' making it a staple in the world of online discourse and reaction-based humor.