ffd stands for fit from distance. It refers to when you see somebody that appears fit when looked on from far away, but when they get closer you realize that they aren't actually attractive.
John: Oh mate check out that chick across the street! She is well fit! Oh look she's crossing the road..
James: Are you blind?! Her face looks like it's made out of leather!
John: My bad, but to be fair she was ffd
FFD Fat Fingure Disease occures when using a smaller keyboard than used to causing you to press more that one key at a time
FFD is short for Freaking Funny Dude.
"Okay, I've said it once and I'll say it again, you are FFD!"
Acronym for Fat Fucking Disgrace. This abbreviated form is used when tact or secrecy is necessary, but also in the interest of speed. Further secreted and shortened by the term fifty.
"Man! Holly's taken a meal break for the third time on her 8-hour shift. What an FFD!"