FTM stands for Fuck The Matrix,
the matrix is the section of the police that deals with illegal drugs in
Liverpool, and some silly 10 year olds think it makes them hardcore to write it places along with a poor representation of the weed sign.
in fact, its not only used by silly ten year olds but also by the retards who give
Liverpool its reputation of stealing things and general rat
consumption. most people aren't like that.