WYM is primarily employed in informal texting or communication in social media when a person requires more information or clarification. An example is when a friend makes a statement that you have not understood, one can simply respond with a statement like WYM? to make your friend clarify. Young users and teens tend to use it in brief when undertaking fast chats. It assists in making the conversation sound natural and casual although it should be avoided when communicating in a formal or professional manner. Know more about What Does Wym Mean
Source: Radarro