1. A person or thing that exemplifies intelligence, reason, logic, and understanding.
2. One who is acutely mindful and informed of their surroundings.
3. A sophisticated, advanced, open-minded and/or superior individual.
(This word is usually followed by a number indicating how well one fits the aforementioned characteristics, on a scale of 0-100.)
2. "My friend is not a zasx, he fails all his tests."
3. "I was looking for my glasses and found them on my head. I'm such a zasx0."