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The M.A.C. System refers to a remarkably simple system that every male puts into effect at one time or another. The M.A.C. stands for: M-Move in A-After C-Completion In short, once one of your friends is done or broken up with a girl, you silently move in to support the girl in her time of dire need. Crushed and heartbroken, the girl will talk incessantly, but will eventually open up sexually. It can be noted that this system requires almost minimal effort and simply nodding and listening works, combined with a few hugs. The M.A.C. System was made popular by Mac, a fictional character from It's Always Sunny in Philadelphia. His system is highly underrated and deserves as much attention as the D.E.N.N.I.S. System.
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