So I translated them myself. Still not sure about some of them. Can I get some help?

文艺装逼范儿 - artsy pretentious asshole 范儿？

无处宣泄青春少男

无处宣泄 good-for-nothing, nothing better to do 青春少男 young male

弄潮儿 - cultural pioneer, leader

黑木耳 - ?

嘻哈装逼少年 - pretentious young hip-hopper

海龟 - 海外归国人员 (thanks Baidu)