fat of the land
1. The hypothetical surplus that one can access in order to live comfortably without working very hard. Often used in the phrase "live off the fat of the land." Ben has been living off the fat of the land for too long—it's time for him to get a job!
2. The best of something. It's a party, and we've got some delicious food—come on, everybody, and enjoy the fat of the land!