WBU means, "What About You?". It is a very common way of texting or engaging in social media conversations to invite the other person to share their thoughts, feelings, or situation after updating them. For instance, if a person says, "I'm fine, WBU?" in response to the question, it helps to keep the conversation going. It's an informal, friendly shortcut that can speed up and sunder the cacophony of digital communication. Although it isn't dangerous, parents are encouraged to be aware of it as part of contemporary slang to help you keep up with adolescent discussions and know how youngsters communicate online in their day to day communications and social applications.
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