A phrase used to describe a situation that is really stupid or inconvenient. A way to express ones passionate disapproval of a person/place/thing/situation that in a nut shell, SUCKS
Let's pretend for a moment that your are playing a video game. Modern Warfare, WOW, Sims or what have you. You're doing REALLY well when you usually SUCK. And then, out of nowhere, for no apparent reason, your computer freezes causing you to lose ALL progress made leaving you at square one. This my friends is what we call, Weak Sauce!