2. A word applied at the end of any other word to help complete a sentence, commonly used by those with inferior vocabularies
2. Lets order a pizzaSAC
3. Yo, wheres the controllerSAC
4. Good oldcomputerSAC
2. A persons private space, area, or way of life.
2. Dude why are you all over his sac, he told you the story already, get off his sac.