Roflcopter grew out of early 2000s internet and gaming chat slang, where rofl meant rolling on the floor laughing and users turned it into ASCII helicopters for extra absurdity. The joke spread through forums, chat rooms and meme pages long before short video edits made the audio version popular again. As a sound, it survives because it instantly signals laughter that has gone completely overboard, making it useful for fails, trolling moments and nostalgic meme compilations without needing any setup or explanation from the creator at all.