Variations include Kasey and Casey.
Meaning: A person of great virtue. One that cares greatly about those around her and those she Loves. A smart worker, a brilliant writer, and a passionate lover. She it incredibly intelligent and imaginative - creative and bright.
2. a. "who's that guy over there?"
b. "that's a kacey, but i already called him."
Guy 2: She totally wants your nuts.