"Entitled" is another throwaway word. It usually means "people who get different stuff from the government than I do".
I don't know, I think it's pretty descriptive at a macro level.
There is no doubt in my mind that my generation feels more "entitled" than my grandparents' generation (The Greatest Generation) did. It's not entirely our fault, we were simply raised with more "stuff" in a more comfortable lifestyle, more convenience, less demand for physical labor and more demand for knowledge workers, etc. And so we came to expect having more and getting more as a matter of course.
On the flipside, in general my grandparents' generation worked more hours for less pay and less buying power. Over their lifetimes they suffered more hardship from famine, disease, and war, and they didn't really complain about it. At least, not until they got really, REALLY old.
And in general, I also see what I consider to be even more entitlement than GenX, from the millennials. It's not every single one of them, but there's certainly a pattern. For example, my two nephews in their late 20s, both are smart, but neither graduated from high school because it was just too hard for them to wake up in the morning. Not kidding, one of them basically just couldn't wake up in the morning, didn't want to go to school, and dropped out and got his GED.
They expect the government to do a LOT more for them than I ever did, and they crave it. One of them actually got angry and posted a social media rant when the news went around that Domino's Pizza was out fixing roads. He didn't think they should be doing that, he felt it was entirely the government's responsibility (which it is of course) but that private businesses shouldn't even be allowed to do it. I was shocked. Definitely not the viewpoint I took when I heard about it. I applauded it, because I'm happy when corporations do something for the societal good, even if it's to their own advantage as well.
And all of the other myriad of examples that come to mind when one thinks of "entitled millennials" pretty much applies to them. But like I said, it's not all of them. I work closely with a couple millennials on my team at work, and they are bright, hard-working, and motivated. Still, I think the term "entitled" applies in a lot of cases, and isn't necessarily so easily written off as "he/she thinks different or gets more stuff than I do."