"Snappy" refers to something that is quick, brisk, or done with speed. It often describes actions, responses, or movements that are efficient and lively. For example, a snappy reply in a conversation is one that is delivered promptly and with a certain sharpness, making the exchange more engaging. In the context of technology, "snappy" can describe software or applications that load quickly and respond to user inputs without delay. A snappy user interface enhances the overall experience, making it more enjoyable and efficient for users, similar to how a smartphone or computer should operate seamlessly.