Oh, there went Zoro's temper! Wheeee, bye bye temper!

Raising one heavy fist in the air, Zoro brought it down on Phibrizzo's head, now entirely sure that the kid deserved to get smacked.

Skinny ass or no, the kid was purposely baiting him! The swordsman had known that there was something off about their conversation and that knowledge alone should have helped him keep his behavior in check but damnit! The kid was getting more annoying to talk to than Luffy. At least his captain was just being honest. This kid was pretty much trying to start a fight.