Someone who gets unbelievably passionate about human rights, social change, equality etc. etc. They have strong opinions and (occasionally) sound theories but do nothing about them. This person only voices their opinion when they don't believe they'll get called out, but never stick to their guns when faced with a situation which challenges the beliefs they care about so keenly.
Sally:"Karen saw someone get sexually harassed the other day and didn't say anything about it, wasn't she going on about how more women need to stick up for each other?"

Ben: "Ugh, she's such a craptivist"
by thecraptivator April 1, 2018
Get the craptivist mug.