People use WSP in conversations as a casual abbreviation for “What’s up?” It’s commonly used in text messages, chats, and social media to ask how someone is doing or what they’re up to. It’s an informal greeting often used between friends. Responses can vary from simple replies like “Not much” or “Just chilling” to sharing updates. Since it’s short and easy to type, WSP Mean is popular in digital communication for quick, friendly check-ins.