(n.) or (adj.)
A term generally used to describe modern-day teenagers, typically girls between the ages of 14-18, who like create a "hardcore" persona on Tumblr by reblogging pictures of inverted crosses, dip-dyed hair, ying-yang symbols and toilets. They like to pretend that they listen to grunge music by wearing stylish Nirvana tees that match their $200 pair of Doc Martens. If you were ask them who the Misfits were, they'd probably say anyone who isn't sporting spikes this season.
Noun: That purple haired girl over smoking a cigarette in the rain is sooo soft grunge.
Adjective: Check out this soft grunge blog for pictures of girls that look like zombies, cats, and zombie cats!
A pejorative but accurate term that typically describes the average teenage tumblr or blogger user that doesn't see themselves as hipster. By using pop culture and surface references to grunge in music, fashion, and imagery they seek to appear as unique and interesting as possible (although the effectiveness of this is debatable).
Usually the content they post is stolen with all reference of the original author removed in order to promote themselves. Subject matter typically falls somewhere between artsy and trashy.
human: Hey I didn't know you listened to Soundgarden?
tumblr kid: What?
human: It's on your T-shirt?
tumblr: oh right...
human: I get it your a soft grunge kid and therefore are just in it for the aesthetic.