I can guess what it means, but it sounds like a pastiche and an exaggeration from far right activists that are trying to portray leftists as being out of touch.

OP's point is it's an affectation, aimed at signalling to an in-group. It's not a common phrase. Like "folx" or "foid", the jargon/cant is there to exclude "normies". Even an appeal for help comes with a barbed "... but not from YOU, outsider" meaning.