A madman who swings their elbows in a violent motion, resulting in many holes in the walls. He must be able to scream things like "cheeks" in a high voice. Lastly, his nipples must have a blue and purple color to them from being squeezed so hard.
Bro: Dude, how did that happen (pointing to a hole in the wall)???
Other Bro: Oh, I had Wonowon over last night and things got crazy.