As much as I would like precise and accurate language, the reality is that people have varying degrees of knowledge of any field. That is why computer technicians and doctors alike have to ask deeper questions when making a diagnosis.
Even within a field, people may have slightly different interpretations of what a word means. Take consumer electronics. Say someone plugged in the wrong power supply and blew an inductor. If you don't know what a power supply filter is, it's garbage. If you do know what's going on, it's a simple repair. Now look at the case of a bad firmware update, where the device cannot reach recovery mode. Someone with a knowledge of embedded software development may know how to fix that, particularly if they have connections with the vendor. Most people will consider it damaged beyond repair. The thing is, you can have one person who is knowledgeable about software and another about electronics having entirely different interpretations of what bricked means. The only real commonality in the definition is, "I cannot repair it." For someone with negligible knowledge about how consumer electronics, that is going to have a very broad application.
Personally, I think that bricked means that it can only be repaired with specialized tools (including soldering irons or JTAG interfaces). But hey, I'm sure a lot of people would beg to differ.
EDIT: missing don't.