Shortcuts such as TMB are used by teens to save time, make them relatable, and fit into the peer group on the Internet. Abbreviations make the messages sound fast, and informal, which is perfect in situations of perpetual texting and communicating on social apps. Slang also enables them to convey emotion or tone effectively. It may be perceived by parents as a digital development of language, yet the need to teach the kids when abbreviations are necessary and when it is more appropriate to use a more straightforward and respectful language. Know more about what does tmb mean