The term 'Coozernui' is derived from the words coozer meaning penis and nui the Maori word from New Zealand meaning big or large. Thus put together coozernui mean huge penis.
A small youtuber with a fanbase that is also pretty small. He is a mobile player on geometry dash and has been waiting for 2.11 for a while now. Prayers go out to him
Sean: Did you hear about thatyoutuber "Coopersuper8"?
Nate: Yeah! I did!
Sean: he's so cool
Nate: I feel bad that he hasn't gotten 2.11 yet though