I'm going to pretend that stands for Full Fat Steak.
What annoys me about a lot of this is that we're told that a food that was introduced into our lives a mere ~10,000 years ago (i.e. grains) is healthy for us. However, something we've been happily chomping on for a good 2,500,000 years (meat) somehow isn't. So Weetabix and Cheerios are good for us, but eggs and steak aren't? Really?
It's amazing how easy people will believe whatever they're told though. I'm slowly, slowly, slowly starting to get through to one of the girls in the office that fat isn't bad for you. Mind you, the new guy looked at me like I was mad when he found out I was a H&F geek that drank gold top milk!