I think it is referring to those people who are somehow tweeting from the parks every day. how do you do that? Do your parents support you?
(Not wanting to spark any huge debates or anything, please don't refer to me as slime or anything like that after reading the following. I am just a person with a career path that allows me some flexibility.)
As someone who was *this close* to actually being one of these people for a living, I can tell you how I was planning on doing it. I am a blogger, not related to Disney, and I am a huge Disney fan as well, so this seemed like a natural fit. Plus, I have other income streams that would have allowed me to do this.
(Pre-cursor: This was actually going to be my plan, but I decided to hunt for full time jobs after grad school just for a short while to see what was out there. I found a full time job that was a really good match for me, so I ended up taking it instead.) I have a part time job working for a tech company from home, which I've had for the past year. I also used to work as an assistant to a marketing consultant, which I also do from home. If I added in one more stream of income (my plan was to get an easy job bartending/waiting tables somewhere in Orlando) I would have had enough income to support myself without having a full-time job, so I could have spent a lot of time in the parks. And since two of my jobs would have been work from home, I technically could do them anywhere there's wifi. Meaning I would have been on a bench in the Magic Kingdom, or riding TTA over and over again.
If you can find an income stream (or multiple) that you can get by remote, it's not that difficult to keep up a side opportunity as any kind of blogger and work hard enough at it to earn a profit (be that cash or swag.) I was about to be an "O-Town Lifestyle Blogger" and needed no help from my parents. (I put myself through grad school in one of the most expensive cities in the world, I can certain hustle hard enough to afford rent in Orlando an an AP.)