OC Fag
Someone who knows every single detail of OC and will yell at you if you get it wrong.
I said 'OC' and they yelled at me like I ruined their life.
I got a question wrong on a test about OC and they called me a 'fag' in front of the whole class.
They sent me a DM at 2 AM about OC and I had to answer it because I was too scared to sleep.