What does labor mean?
The word Tru is the Russian transliteration of the English word true, and it means: true, real, true, original.
It came to the Internet slang from metalworkers. Initially it was used in relation to those who really enter into the "movement", who understands and shares his ideas. In contrast to those who adopt external manifestations, such as attributes, appearance and manner of communication, do not understand or do not follow internal principles.
Over time, this word has acquired a more general meaning and often expresses the recognition of a person, his uniqueness or involvement in something depending on the context. It is often used as a prefix, but sometimes also as an independent part of speech. Sometimes it expresses a very abstract content, which may differ somewhat among representatives of various subcultures and groups. To be true is to be a real connoisseur with regards to some topic.
Nowadays, it is sometimes used as an indicator of chosenness or brutality.
It can be written with a solid sign at the end or abbreviated to one capital solid “b”.