ROFL stands for "Rolling On the Floor Laughing." It is an internet slang term used to express extreme amusement or laughter in response to something funny. People often use it in text messages or online communication to convey that they found something hilarious, suggesting that they are laughing so hard they might fall over. The term is part of a larger set of acronyms used in digital communication, such as LOL (Laughing Out Loud) and LMAO (Laughing My Ass Off). These expressions help convey emotions quickly and effectively in a world where face-to-face interactions are less common, especially in platforms like social media and text messaging.