"... to roast rank-and-file liberals who were horrified by Trump’s buffoonery and malice throughout his administration, and to celebrate their impotent anger. (This picture of a young woman screaming in agony at the 2016 inauguration became something of a stand-in for the typical seething Democrat.)... [T]o command someone to 'seethe' was part of owning the libs. But the libs themselves have slowly started to appropriate the confrontational, 4Chan-poisoned language of a post-Trump internet—we currently inhabit a country where sitting senators are sharing Dark Brandon memes...."
From "The Audacity of Cope/Laughing at other people’s politics-related sadness is fun, actually" by Luke Winkie (Slate)(click through if only for the illustration).