The acronym TMB stands as one of the common abbreviations of Text Me Back. In order to drive a point home that friends or peers should respond to the message sent to them in a hurry, teens tend to use it. It is an informal, friendly prompt applied in a conversation where one has not replied. As an illustration, when a teenager writes Hey, TMB when you can, he/she is making the other person answer as soon as possible. It is just one of numerous shorthand texts which makes the process of texting of younger generations quicker and more informative. Know more about what does tmb mean