Well, I have always wanted to know what is fb. Like people say "I got my trojan 75 to 85 fast with fb and such as things. And I'm pretty out. And I think that someone else is too

ps:. So would be nice if someone tells me what the heck is fb, and how to use it

. And why I'm making topic at it because you can't search it. FB is too short word to search at

. So please help noob
If someone has explained this already someone would be nice and post a link for it
AND sorry for my bad simple english