Exit-level
Something that is the opposite of "entry-level." Seen used to describe a band or musician, relative to other bands in the same genre; to poke fun at trendy kids who constantly need to remind everyone how obscure their musical tastes are.
So, today I was totally listening to this one instrumental-avant-garde-progressive-post-metal band. You've probably never heard about them though, they are so.. exit-level.
Exit-Level
Exit-level literature refers to extremely depressing novels and works. The term ‘exit-level’ was a nickname given to liberal arts that were the opposite of entry-level art, such as literature, music etc. But over the years, and the redefinition from 4chan, Exit-level literature, although not difficult to read, came to mean novels and works of an extremely melancholic and depressing nature.
The novel The Maimed is so depressing it makes me wanna blow my brains out, it’s pretty exit-level stuff.