A pejorative for die-hard liberals, from a leftist perspective.

it's the liberal version of the conservative red maga

People who make the same excuses for democrats that maga types do for Trump. For example:

-Biden is actually not losing his mind, that's Russian disinformation!

-Tara Reade is a Russian Plant who's lying about being assaulted!

-Biden has actually made things a lot better, but the hostile (probably trump-loving) news media refuses to mention it!

I use Biden because he was a magnet to this kind of thing