Bernie Sanders has probably recently given this term new popularity but it isn’t necessarily a new term. However in a recent speech Sanders articulates what he means when he uses the term. You can read his explanation here. From what he has explained the main take away for me is that “Democratic Socialism” does not believe the state should own the means of production. At this point I’m not too sure how that is different from the classical definition of socialism but apparently it is. I would appreciate any thoughts you might have on the matter.