Mac is one of the owners of Paddy alongside his friends, Charlie and Dennis on It's Always Sunny in Philadelphia.  Mac is generally seen wearing t-shirts, often without sleeves, on account of being so proud of his phsyic.  Unfortunately it doesn't seem to work for the guy as most people see him as the jerk.  Personally, we love the guy.

Mac Quotes

Andrew Caine: And you are?
Mac: Vic Vinegar. Bodyguard. I don't shake hands, so don't even try.

Naked pics online? That's disgusting. On a website? There's so many of them though. Where? Which one?

Mac