A Lot of Questions

Hi All,
I have experience playing Madden in the past but on the PC. What the heck are fag defenses, nano blitzes, and re-blitzing? I totally do not understand what those terms are referring to. Will someone please shed some light on these for me please?
Gunner out

Fag D- dropping 9 or more players into coverage
Nano blitz- a blitz you can do, usually by blitzing lb's and putting them into the gaps, so the pressure gets there in a Nano-second, which is why its called that.
Re-blitzing- going to a player that is blitzing and having them re-blitz

there is a ton of info on here on these topics, just scroll through or search, you will find a ton more