The phrase guns don't kill people has circulated for decades as a shortened form of a pro gun slogan arguing that people, not weapons, are responsible for violence. Online it lost much of that campaign context and became a standalone meme line, shared in forums, image macros and short video edits. Its brevity helps it travel as a reaction clip, quoted in debates about gun control, gaming violence and media blame. It remains in use because it can be played straight, ironically, or as an instant recognisable punchline.