The context of the following conversation is Cameron would make fun of Austin when he spoke in front of their coworkers at workplace.:
Austin says I swear I'm going to punch Cameron..
The friend responds What did Cameron do now?.
Austin responds He's a jerk. Every time it's his turn to talk at work, he tries to make fun of me, in some way..
The friend responds Just tell him to knock it off..
Austin responds I have...many times. That's why I'm ready to punch him..
The friend responds I think I understand now..