To describe or classify a toxic nature, an unhealthy personality Toxic Person, someone who gives false information and make light of the situation. Someone who intentionally sabotage the other party.
Why did you give me this information to lead me to the wrong place? You are such a TB.
He is such a TB that he is not remorseful about exposing the secret that he swore to keep.
Making other people feel bad and contemplate about their life decision is what makes you a TB.
A tease reference for anybody with the ability to teleport, or the tendancy to appear out of nowhere. In this context it is short-term for 'Teleporting Bastard'; Also unrelatedly short-term for tuberculosis.