Nickname Professor~ Makgeolli's face is gone.Hmm, you might wanna pick a better nickname. OK! I decided to get Rowlet! That's right, your name... You're kinda round like a moss ball, so I'll call you
Makgeolli.
It's a type of Korean alcoholic beverage. I think he's trying to mean Marimokkori Man, the Hokkaido boner mascot.