(1) Next generation of people who are frequent clubbers, spenders, and owners of high-end gadgetry. (2) A high-class society which is somewhere between the B-Class and the A-Class. (3) Sophisticated and glamorous at the same time (when referring to objects)
1. Those people are so high life, I always see them club hopping.
2. Wow, your laptop is so high life!
3. The newly moved family next-door is a group of high life individuals.