According to translations KpopKfans it seems like Kangin (who has a history of anger issues and drunk driving that sent him to jail once) called VIXX's N "fucking trash" on the show they have together called 'Bachelor Party'
The entire crew seems to be pretty close when it comes to being in the public eye, but recently netizens have been picking out details that say otherwise (other than the obvious statements on the TV show)
Personally, I think Cha Hakyeon is an absolute angel and I've never liked Kangin so I am completely biased, but what do you think? Keep in mind - Super Junior was one of the first groups I got into (back in 2007) so I'm not hating on SuJu as a whole!
Question) N says cheesy words to the women. Girl group judges always pick N as #1, don't you think it's cringe-worthy?
Kangin) I want to kill him. I'm thinking of how I should beat him up.
Question) What girl group do you want to see? Hakyeon?
N) I really don't know. I don't really have thoughts on it.
Kangin) Of course, you always spit, "I don't really have thoughts on it." You fucking trash, did your company tell you to say that?
Question) What do you think of N?
Kangin) Well... Loser? Minnow?
N) See this. On the broadcast, women prefer me and Kangin hyung hears about me around him... I see why he's defensive towards me.
Kangin) (laugh) I was joking. I'm honestly happy that N is popular as a romantic guy. With lots of love he's getting from the fans, I want him to leave this show ASAP.
Question) N's self-compliments are extreme
N) I'm being honest. I'm saying the truth. I'm saying I'm good because I'm good.
Kangin) This kid is crazy. I never thought an insane character would appear after me.
N) But I'm really different from the hyungs. When they talk about girls, I talk about travelling.
Kangin) Manager, bring me something to hit him with
N) I'm still young.
Eunhyuk) You're not young
Kangin's Instagram:"Bachelor Party. Dong Yup-nim, Jongmin oppa, trendy Seho hyung, you've all worked hard. Eunhyuk-ah, it feels empty without you"#Eunhyuk anchovy
- He mentioned everyone on the show (even Eunhyuk who wasn't there) except N